Academia.edu no longer supports Internet Explorer.

To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to  upgrade your browser .

Enter the email address you signed up with and we'll email you a reset link.

  • We're Hiring!
  • Help Center

paper cover thumbnail

A fresh look at "O Captain..."

Profile image of Aldemaro Romero Jr.

2011, The Edwardsville Intelligencer, p. 3.

One of the most famous poems in American literature is Walt Whitman’s “O Captain! My Captain!” Written after the assassination of Abraham Lincoln, it came to repre- sent the sorrow of a nation, a nation seen as a ship that had lost its skipper. In this, the 150th anniversary of the beginning of the Civil War, many are re-examining the events surround- ing this critical period in American history.

Related Papers

Walt Whitman Quarterly Review

Jerome Loving

research paper on o captain

Brytani Raymond

Laura Lopez

Ted Genoways

Adam Bradford

Mickle Street Review

Cynthia Wachtell

Cliff Hudder

Journal of Tikrit University for Humanities

Hasan M . Saleh

Walt Whitman is internationally reputed to be the spokesman for the national identity of America during the throes of the American civil war which represented a shocking experience for the people there. He found that his country was being broken into pieces before his eyes, a matter which moved him to reflect on the American national identity. Such a national concern is exemplarily embodied in his great work Leaves of Grass which celebrates in totality the spirit of American nationalism. This paper explores how Whitman examines the representation of national identity in his poem "O Pioneers! O Pioneers!." In this poem, he encourages and reminds the American people of their past in an attempt to inseminate the sense of social and national solidarity in his war-afflicted country.

RELATED PAPERS

yordan hidalgo orellana

Nefi Agus Wahyu Ningsih

International Journal of Information Systems and Computer Sciences

WARSE The World Academy of Research in Science and Engineering

Photochemical & Photobiological Sciences

Sajjad Ullah

Arctic, Antarctic, and Alpine Research

Stephan Halloy

Turkish journal of trauma & emergency surgery

Cumhur Çakır

Transport in Porous Media

Rachida BOUHLILA

Bulletin of the American Physical Society

valeria lauter

The New Educational Review

VEBY CARASOL

Bioorganic & Medicinal Chemistry Letters

Ajay Bhargava

Nushin Moussavi

International journal of Pharmacy and Pharmaceutical Sciences

International Journal of Pharmacy and Pharmaceutical Sciences (IJPPS) , Prabhjot Kaur

IEEE ... International Conference on Rehabilitation Robotics : [proceedings]

Tommaso Baldi

Mohammad Reza Masrour

HAL (Le Centre pour la Communication Scientifique Directe)

Mohamed El Idrissi

Andrejs Čirjevskis

Proceedings of the Eighth ACM Conference on Learning @ Scale

Eytan Sheshinski

Dedi Saputra

Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi

TAHSİN BOYRAZ

RELATED TOPICS

  •   We're Hiring!
  •   Help Center
  • Find new research papers in:
  • Health Sciences
  • Earth Sciences
  • Cognitive Science
  • Mathematics
  • Computer Science
  • Academia ©2024

research paper on o captain

O Captain! My Captain! Summary & Analysis by Walt Whitman

  • Line-by-Line Explanation & Analysis
  • Poetic Devices
  • Vocabulary & References
  • Form, Meter, & Rhyme Scheme
  • Line-by-Line Explanations

research paper on o captain

“O Captain! My Captain!” is an elegy written by Walt Whitman in 1865 to commemorate the death of President Abraham Lincoln. It was first published in Sequel to Drum-Taps (1865), a collection of Whitman’s poems inspired by the events of the American Civil War. The poem is perhaps Whitman’s most famous—which is ironic, since it is far more conventional in meter, form, and subject than much of Whitman’s other work. Although some critics have suggested that Whitman regretted ever writing “O Captain! My Captain!” it undeniably captured the mood of a nation in mourning and has remained one of Whitman’s best-loved and most-quoted poems.

  • Read the full text of “O Captain! My Captain!”

research paper on o captain

The Full Text of “O Captain! My Captain!”

1 O Captain! my Captain! our fearful trip is done,

2 The ship has weather’d every rack, the prize we sought is won,

3 The port is near, the bells I hear, the people all exulting,

4 While follow eyes the steady keel, the vessel grim and daring;

5                          But O heart! heart! heart!

6                             O the bleeding drops of red,

7                                Where on the deck my Captain lies,

8                                   Fallen cold and dead.

9 O Captain! my Captain! rise up and hear the bells;

10 Rise up—for you the flag is flung—for you the bugle trills,

11 For you bouquets and ribbon’d wreaths—for you the shores a-crowding,

12 For you they call, the swaying mass, their eager faces turning;

13                          Here Captain! dear father!

14                             This arm beneath your head!

15                                It is some dream that on the deck,

16                                  You’ve fallen cold and dead.

17 My Captain does not answer, his lips are pale and still,

18 My father does not feel my arm, he has no pulse nor will,

19 The ship is anchor’d safe and sound, its voyage closed and done,

20 From fearful trip the victor ship comes in with object won;

21                          Exult O shores, and ring O bells!

22                             But I with mournful tread,

23                                Walk the deck my Captain lies,

24                                   Fallen cold and dead.

“O Captain! My Captain!” Summary

“o captain my captain” themes.

Theme Victory and Loss

Victory and Loss

  • See where this theme is active in the poem.

Theme Grief and Isolation

Grief and Isolation

Theme The Individual vs. the Nation

The Individual vs. the Nation

Line-by-line explanation & analysis of “o captain my captain”.

O Captain! my Captain! our fearful trip is done, The ship has weather’d every rack, the prize we sought is won, The port is near, the bells I hear, the people all exulting, While follow eyes the steady keel, the vessel grim and daring;

research paper on o captain

O the bleeding drops of red,

O Captain! my Captain! rise up and hear the bells; Rise up—for you the flag is flung—for you the bugle trills, For you bouquets and ribbon’d wreaths—for you the shores a-crowding, For you they call, the swaying mass, their eager faces turning;

Lines 13-18

Here Captain! dear father!                             This arm beneath your head!                                It is some dream that on the deck,                                  You’ve fallen cold and dead. My Captain does not answer, his lips are pale and still, My father does not feel my arm, he has no pulse nor will,

Lines 19-24

The ship is anchor’d safe and sound, its voyage closed and done, From fearful trip the victor ship comes in with object won;                          Exult O shores, and ring O bells!                             But I with mournful tread,                                Walk the deck my Captain lies,                                   Fallen cold and dead.

“O Captain! My Captain!” Symbols

Symbol The Ship

  • See where this symbol appears in the poem.

“O Captain! My Captain!” Poetic Devices & Figurative Language

Extended metaphor.

  • See where this poetic device appears in the poem.

Alliteration

End-stopped line, personification, juxtaposition, “o captain my captain” vocabulary.

Select any word below to get its definition in the context of the poem. The words are listed in the order in which they appear in the poem.

  • See where this vocabulary word appears in the poem.

Form, Meter, & Rhyme Scheme of “O Captain! My Captain!”

Rhyme scheme, “o captain my captain” speaker, “o captain my captain” setting, literary and historical context of “o captain my captain”, more “o captain my captain” resources, external resources.

Whitman Out Loud — For audio recordings of the poem, check out the free downloadable selection from LibriVox.

Poetry and the Mediation of Value: Whitman on Lincoln — This is the text of a lecture by Professor Helen Vendler, a famous authority on American and British poetry. Although it is an academic lecture, it is written in an accessible style.

Two Worlds of Mourning: Walt Whitman and Abraham Lincoln’s Death — This resource from the National Portrait Gallery dives in to the relationship between Walt Whitman and the subject of his elegy, President Abraham Lincoln.

Clip from Dead Poets Society — "O Captain! My Captain!" remains a staple of the American school curriculum and appears frequently in popular culture. Watch a famous scene from the film Dead Poets Society in which students recite the beginning of the poem for their teacher, played by Robin Williams.

Encyclopedia.com Entry on "O Captain! My Captain!" — An extensive introduction to the poem and its context. The "Critical Overview" section is particularly comprehensive, including excerpts from the work of several prominent critics.

LitCharts on Other Poems by Walt Whitman

A March in the Ranks Hard-Prest, and the Road Unknown

A Noiseless Patient Spider

Beat! Beat! Drums!

Crossing Brooklyn Ferry

I Hear America Singing

I Sing the Body Electric

O Me! O Life!

One's-Self I Sing

The Voice of the Rain

When I Heard the Learn’d Astronomer

When Lilacs Last in the Dooryard Bloom’d

Ask LitCharts AI: The answer to your questions

The LitCharts.com logo.

Frontiers in Educational Research , 2021, 4(5); doi: 10.25236/FER.2021.040510 .

An Analysis of Conceptual Metaphor in Walt Whitman's O Captain! My Captain! From a Cognitive Perspective

Yang Linyan

Inner Mongolia Normal University, Hohhot, Inner Mongolia Autonomous Region, 011517, China

  • Full-Text HTML
  • Full-Text XML
  • Full-Text Epub
  • Download PDF
  • Download: 216

From the perspective of cognitive linguistics, this paper takes the image of "captain" in Walt Whitman's O Captain! My Maptain! as the research object, and analyzes the source domain, target domain and their mapping relationship in the poem, aiming to deeply understand the definition and application of conceptual metaphor, and help better understand the poem.

cognition; conceptual metaphor; O Captain! My Captain!

Cite This Paper

Yang Linyan. An Analysis of Conceptual Metaphor in Walt Whitman's O Captain! My Captain! From a Cognitive Perspective. Frontiers in Educational Research (2021) Vol. 4, Issue 5: 34-37. https://doi.org/10.25236/FER.2021.040510.

[1] Dirk Geraerts(2006). Cognitive Linguistics: Basic Readings [M]. Shanghai: Shanghai Foreign Language Education Press

[2] Lakoff, G. & M. Johnson (1980). Metaphors We Live By[M]. Chicago: University of Chicago Press

[3] Jiang Renlong(2013). Emotional Interpretation of O Captain! My Captain! from the Perspective of Cognitive Poetics [J]. English Studies

[4] Wei Zaijiang(2008). Metaphor and the Construction of Literary Discourse [J]. Foreign Language and Foreign Language Teaching

[5] Xu Zhimin(2003). On the Aesthetic Value of O Captain! My Captain![J]. Journal of Anyang University, (3):112-113

Symbolism and Imagery in O Captain! My Captain!

  • To find inspiration for your paper and overcome writer’s block
  • As a source of information (ensure proper referencing)
  • As a template for you assignment

What does the ship represent in O Captain! My Captain!? What about the port? Find out the answers to these questions in the essay below.

  • Symbolism in O Captain, My Captain
  • Imagery in O Captain, My Captain

Reference List

Symbolism and imagery are some of the significant elements of style in poetry. In this essay, symbolism and imagery in O Captain, My Captain shall be analyzed in detail. Symbolism element is used to emphasize internalized poetry aspects to describe the feeling and thoughts of a poet due to a lack of better words to describe them.

It uses an object, an idea, a person, or a place to bring out a more profound meaning rather than what it represents itself. Imagery element, on the other hand, uses figurative words to make the reader see things from the poet’s perspective. It emphasized creative speaking or writing, vivid images, suggestions, or descriptive presentation.

It not only needs to be visual but involves all the five senses; sight, hearing, touch, taste, and smell. The two poetry elements are also referred to as the metaphors in a single terminology. The poet employs the abundant use of imagery and symbolism in passing the message, ideas, and the subject of the poem.

O Captain! My Captain! Symbolism

The first stanza of the poem O Captain, My Captain has a lot of imagery and symbolism depicting the era of Abraham Lincoln. In the first line, the captain is used to symbolize Abraham Lincoln, who was the union leader in the civil war. What does the ship symbolize in O Captain, My Captain? The ship is used to represent America as a country, and the “fearful trip” (Whitman, 2006, p. 1) is a representation of the civil war during the Abraham Lincoln era.

The “prize we sought is won” (Trinh, 2002, p. 1) symbolizes the union victory in freeing the people from slavery during the civil war. “The port is near, the bells I hear, people exulting” (Hennessey, 2001, p. 1) is used to symbolize the jubilation and happiness of the American people since they had overcome the war of slavery and won.

O Captain! My Captain! Imagery

The proceeding lines deliver the captain’s death after the victory of the civil war, which is the main theme of the poem. Repetition of “but O Heart! Heart! Heart! “(Trinh, 2002, p. 1) represents the speakers’ horror to the fact that the captain has died.

Repetition of the word heart with an exclamation mark is an imagery representation of the disbelief in the speakers’ towards his captain’s death. “Bleeding drops of red” (Whitman, 2006, p. 1) is used to represents the captain’s wounded heart and the wounds in the captain’s body. The rhythm portrays the emotion of the speaker and in the country population at large.

The second stanza contrast the two groups emotions, this is made possible through the use of rich imagery to portray the different effect of the president assassination. One group of the crowd is gathering to celebrate the victory of the military that was lead by the dead Lincoln while the other crowd is mourning his death. “Rise up and hear the bells” (Whitman, 2006, p. 1). The bell symbolizes the jubilation by one group and wailing, anguish, and pain of loss in the other group of the population.

Also, the bugle can be taken to represent military calls for victory; they are played at soldiers’ funerals as a sign of honor, and a hero send-off. Wreaths and bouquets is an imagery of the two emotion state the population is going through after the assassination.

One crowd is rejoicing, while the other is mourning the death of the leader Abraham Lincoln. The summary depicts the different reactions by the population to his death. The captain is being referred to as the father by the speaker for the first time in the poem (Trinh, 2002, p. 2). This show Lincoln was not only recognized by the people as their president but also as a mentor of the generation. He symbolizes a new dawn or era in American history, where people are free from slavery.

In the last lines, the speaker is in self-denial concerning the death of Lincoln, he even says it is a dream. In the last line, “You have fallen cold and dead” (Hennessey, 2001, p. 1), it qualifies the speaker state of disbelief concerning the president’s death. He even assumes the president could hear him by talking to his corpse, later it sinks into his mind the president has crossed over to the other world.

His death is what the imagery emphasizes in the last stanza. The speaker describes him as still with pale lips, having no pulse, and he could not feel his arms. This creates a vivid description of a dead body, the narrator speaks from a third persona rather from a first persona as with stanza one and two.

He talks of the population enjoying the newfound freedom from slavery while he suffers the loss from the death of the president, which adds irony to the poem. As the poem finishes, he acknowledges the president is indeed dead, but he continues to mourn (Whitman, 1997, p. 1). Despite the reality of the president being dead, it is clear many are still to come to terms with his death.

The pain and anguish the American population felt after President Abraham Lincoln’s assassination were unbearable. It is clear from the poem that it is still hard for them to accept the loss of their hero. The beauty of the poem can be attributed to the vivid expression made possible by the use of symbolism and imagery in the poem.

The essay analyzes imagery and symbolism in the poems and answers significant questions such as “Who Does the Captain Symbolize in O Captain, My Captain ?” The poem is an elegy. It has been used to vividly describe the scenario in America slightly before and after the assassination of Abraham Lincoln, who was the president at that time. From the poem, we get a vivid picture of the people’s perception towards their president and also his character.

It is clear from the poem the president was a man of the people, and he was wholly accepted and adored by the majority of the citizens. He represented the people and spoke the people’s language, expressing their views and ideas. Genuinely was the president in representing the people’s concerns who had elected him into office.

Hennessey, M. (2001). O Captain! My Captain! By Walt Whitman. Web.

Trinh, H. (2002). Literary analysis: O Captain, My Captain, by Walt Whitman. Web.

Whitman, W. (1997). O Captain. My Captain. Academy of American Poets. Web.

Whitman, W. (2006). O Captain. My Captain. Analysis. Web.

  • Owen’s "Dulce et Decorum Est" and "Anthem for Doomed Youth"
  • “The Secret Sharer” by Joseph Conrad
  • Biblical Allusions and Symbolism in Billy Budd - Analysis
  • Rhetorical Analysis of the Article
  • Symbolism in Death of a Salesman
  • I Need a Wife by Judy Brady
  • Conflict of Generations in Smoke Signals and “Two Kinds”
  • Creation Myths: Theories of Myths
  • Chicago (A-D)
  • Chicago (N-B)

IvyPanda. (2018, May 19). Symbolism and Imagery in O Captain! My Captain! https://ivypanda.com/essays/symbolism-and-imagery/

"Symbolism and Imagery in O Captain! My Captain!" IvyPanda , 19 May 2018, ivypanda.com/essays/symbolism-and-imagery/.

IvyPanda . (2018) 'Symbolism and Imagery in O Captain! My Captain'. 19 May.

IvyPanda . 2018. "Symbolism and Imagery in O Captain! My Captain!" May 19, 2018. https://ivypanda.com/essays/symbolism-and-imagery/.

1. IvyPanda . "Symbolism and Imagery in O Captain! My Captain!" May 19, 2018. https://ivypanda.com/essays/symbolism-and-imagery/.

Bibliography

IvyPanda . "Symbolism and Imagery in O Captain! My Captain!" May 19, 2018. https://ivypanda.com/essays/symbolism-and-imagery/.

Home — Essay Samples — Literature — Walt Whitman — O Captain My Captain Poem Analysis

test_template

O Captain My Captain Poem Analysis

  • Categories: Abraham Lincoln Walt Whitman

About this sample

close

Words: 629 |

Published: Mar 19, 2024

Words: 629 | Page: 1 | 4 min read

Table of contents

I. introduction, ii. historical context of the poem, iii. structure and style of the poem, themes and symbolism in the poem, imagery and language in the poem, reception and legacy of the poem.

Image of Dr. Charlotte Jacobson

Cite this Essay

Let us write you an essay from scratch

  • 450+ experts on 30 subjects ready to help
  • Custom essay delivered in as few as 3 hours

Get high-quality help

author

Dr. Karlyna PhD

Verified writer

  • Expert in: Government & Politics Literature

writer

+ 120 experts online

By clicking “Check Writers’ Offers”, you agree to our terms of service and privacy policy . We’ll occasionally send you promo and account related email

No need to pay just yet!

Related Essays

4 pages / 1725 words

3.5 pages / 2123 words

7 pages / 3276 words

4.5 pages / 1980 words

Remember! This is just a sample.

You can get your custom paper by one of our expert writers.

121 writers online

Still can’t find what you need?

Browse our vast selection of original essay samples, each expertly formatted and styled

Related Essays on Walt Whitman

Walt Whitman, often hailed as the "father of free verse," is renowned for his unique and revolutionary approach to poetry. His works are characterized by a distinct tone that reflects his celebration of individualism, democracy, [...]

In the poem “When I Heard the Learn’d Astronomer,” Walt Whitman writes of a speaker who is exposed to the knowledge of the stars in the sky and the Milky Way galaxies, but is restricted from fathoming a deeper understanding in [...]

Song of Myself is a poem of bold declarations that egotistically assert Walt Whitman's place and purpose in the context of a world of immense scope and romantically instilled vigor. And yet located within this chaotic unfurling [...]

Walt Whitman’s poetry contains many basic elements that come together to characterize his own stance in 19th century social and political thought. An analysis of Whitman’s “Song of Myself” and “I Sing the Body Electric” [...]

In the poem “A Noiseless Patient Spider” by Walt Whitman he speaks of a spider that faces problems and has no one to help it through them. Walt Whitman uses elements such as imagery and symbolism. He uses imagery to allow the [...]

In his January 6, 1865 letter to fellow writer and self-confessed radical William O'Connor, Walt Whitman states in no uncertain terms that his poetry collection Drum Taps "delivers my ambition. . . to express. . . the pending [...]

Related Topics

By clicking “Send”, you agree to our Terms of service and Privacy statement . We will occasionally send you account related emails.

Where do you want us to send this sample?

By clicking “Continue”, you agree to our terms of service and privacy policy.

Be careful. This essay is not unique

This essay was donated by a student and is likely to have been used and submitted before

Download this Sample

Free samples may contain mistakes and not unique parts

Sorry, we could not paraphrase this essay. Our professional writers can rewrite it and get you a unique paper.

Please check your inbox.

We can write you a custom essay that will follow your exact instructions and meet the deadlines. Let's fix your grades together!

Get Your Personalized Essay in 3 Hours or Less!

We use cookies to personalyze your web-site experience. By continuing we’ll assume you board with our cookie policy .

  • Instructions Followed To The Letter
  • Deadlines Met At Every Stage
  • Unique And Plagiarism Free

research paper on o captain

  • Essay Database
  • world trade center
  • Greek Food and Culture
  • The Future Portrayed I…
  • Intercultural Communications
  • In Heart of Darkness, …
  • Things Fall Apart by C…
  • In J.M. Coetzee's Wait…
  • The Criminals Of Profe…
  • Socialization of Children
  • The Poet of Nature, Wi…
  • Leonhard Euler
  • Articles of Confederat…
  • About all Sharks
  • Vietnam Poetry

Walt Whitman (O, Captain, My Captain)

What is paper-research.

  • Custom Writing Service
  • Terms of Service
  • Privacy Policy
  • Biographies

Suggestions or feedback?

MIT News | Massachusetts Institute of Technology

  • Machine learning
  • Social justice
  • Black holes
  • Classes and programs

Departments

  • Aeronautics and Astronautics
  • Brain and Cognitive Sciences
  • Architecture
  • Political Science
  • Mechanical Engineering

Centers, Labs, & Programs

  • Abdul Latif Jameel Poverty Action Lab (J-PAL)
  • Picower Institute for Learning and Memory
  • Lincoln Laboratory
  • School of Architecture + Planning
  • School of Engineering
  • School of Humanities, Arts, and Social Sciences
  • Sloan School of Management
  • School of Science
  • MIT Schwarzman College of Computing

Modular, scalable hardware architecture for a quantum computer

Press contact :, media download.

Rendering shows the 4 layers of a semiconductor chip, with the top layer being a vibrant burst of light.

*Terms of Use:

Images for download on the MIT News office website are made available to non-commercial entities, press and the general public under a Creative Commons Attribution Non-Commercial No Derivatives license . You may not alter the images provided, other than to crop them to size. A credit line must be used when reproducing images; if one is not provided below, credit the images to "MIT."

Rendering shows the 4 layers of a semiconductor chip, with the top layer being a vibrant burst of light.

Previous image Next image

Quantum computers hold the promise of being able to quickly solve extremely complex problems that might take the world’s most powerful supercomputer decades to crack.

But achieving that performance involves building a system with millions of interconnected building blocks called qubits. Making and controlling so many qubits in a hardware architecture is an enormous challenge that scientists around the world are striving to meet.

Toward this goal, researchers at MIT and MITRE have demonstrated a scalable, modular hardware platform that integrates thousands of interconnected qubits onto a customized integrated circuit. This “quantum-system-on-chip” (QSoC) architecture enables the researchers to precisely tune and control a dense array of qubits. Multiple chips could be connected using optical networking to create a large-scale quantum communication network.

By tuning qubits across 11 frequency channels, this QSoC architecture allows for a new proposed protocol of “entanglement multiplexing” for large-scale quantum computing.

The team spent years perfecting an intricate process for manufacturing two-dimensional arrays of atom-sized qubit microchiplets and transferring thousands of them onto a carefully prepared complementary metal-oxide semiconductor (CMOS) chip. This transfer can be performed in a single step.

“We will need a large number of qubits, and great control over them, to really leverage the power of a quantum system and make it useful. We are proposing a brand new architecture and a fabrication technology that can support the scalability requirements of a hardware system for a quantum computer,” says Linsen Li, an electrical engineering and computer science (EECS) graduate student and lead author of a paper on this architecture.

Li’s co-authors include Ruonan Han, an associate professor in EECS, leader of the Terahertz Integrated Electronics Group, and member of the Research Laboratory of Electronics (RLE); senior author Dirk Englund, professor of EECS, principal investigator of the Quantum Photonics and Artificial Intelligence Group and of RLE; as well as others at MIT, Cornell University, the Delft Institute of Technology, the U.S. Army Research Laboratory, and the MITRE Corporation. The paper appears today in Nature .

Diamond microchiplets

While there are many types of qubits, the researchers chose to use diamond color centers because of their scalability advantages. They previously used such qubits to produce integrated quantum chips with photonic circuitry.

Qubits made from diamond color centers are “artificial atoms” that carry quantum information. Because diamond color centers are solid-state systems, the qubit manufacturing is compatible with modern semiconductor fabrication processes. They are also compact and have relatively long coherence times, which refers to the amount of time a qubit’s state remains stable, due to the clean environment provided by the diamond material.

In addition, diamond color centers have photonic interfaces which allows them to be remotely entangled, or connected, with other qubits that aren’t adjacent to them.

“The conventional assumption in the field is that the inhomogeneity of the diamond color center is a drawback compared to identical quantum memory like ions and neutral atoms. However, we turn this challenge into an advantage by embracing the diversity of the artificial atoms: Each atom has its own spectral frequency. This allows us to communicate with individual atoms by voltage tuning them into resonance with a laser, much like tuning the dial on a tiny radio,” says Englund.

This is especially difficult because the researchers must achieve this at a large scale to compensate for the qubit inhomogeneity in a large system.

To communicate across qubits, they need to have multiple such “quantum radios” dialed into the same channel. Achieving this condition becomes near-certain when scaling to thousands of qubits. To this end, the researchers surmounted that challenge by integrating a large array of diamond color center qubits onto a CMOS chip which provides the control dials. The chip can be incorporated with built-in digital logic that rapidly and automatically reconfigures the voltages, enabling the qubits to reach full connectivity.

“This compensates for the in-homogenous nature of the system. With the CMOS platform, we can quickly and dynamically tune all the qubit frequencies,” Li explains.

Lock-and-release fabrication

To build this QSoC, the researchers developed a fabrication process to transfer diamond color center “microchiplets” onto a CMOS backplane at a large scale.

They started by fabricating an array of diamond color center microchiplets from a solid block of diamond. They also designed and fabricated nanoscale optical antennas that enable more efficient collection of the photons emitted by these color center qubits in free space.

Then, they designed and mapped out the chip from the semiconductor foundry. Working in the MIT.nano cleanroom, they post-processed a CMOS chip to add microscale sockets that match up with the diamond microchiplet array.

They built an in-house transfer setup in the lab and applied a lock-and-release process to integrate the two layers by locking the diamond microchiplets into the sockets on the CMOS chip. Since the diamond microchiplets are weakly bonded to the diamond surface, when they release the bulk diamond horizontally, the microchiplets stay in the sockets.

“Because we can control the fabrication of both the diamond and the CMOS chip, we can make a complementary pattern. In this way, we can transfer thousands of diamond chiplets into their corresponding sockets all at the same time,” Li says.

The researchers demonstrated a 500-micron by 500-micron area transfer for an array with 1,024 diamond nanoantennas, but they could use larger diamond arrays and a larger CMOS chip to further scale up the system. In fact, they found that with more qubits, tuning the frequencies actually requires less voltage for this architecture.

“In this case, if you have more qubits, our architecture will work even better,” Li says.

The team tested many nanostructures before they determined the ideal microchiplet array for the lock-and-release process. However, making quantum microchiplets is no easy task, and the process took years to perfect.

“We have iterated and developed the recipe to fabricate these diamond nanostructures in MIT cleanroom, but it is a very complicated process. It took 19 steps of nanofabrication to get the diamond quantum microchiplets, and the steps were not straightforward,” he adds.

Alongside their QSoC, the researchers developed an approach to characterize the system and measure its performance on a large scale. To do this, they built a custom cryo-optical metrology setup.

Using this technique, they demonstrated an entire chip with over 4,000 qubits that could be tuned to the same frequency while maintaining their spin and optical properties. They also built a digital twin simulation that connects the experiment with digitized modeling, which helps them understand the root causes of the observed phenomenon and determine how to efficiently implement the architecture.

In the future, the researchers could boost the performance of their system by refining the materials they used to make qubits or developing more precise control processes. They could also apply this architecture to other solid-state quantum systems.

This work was supported by the MITRE Corporation Quantum Moonshot Program, the U.S. National Science Foundation, the U.S. Army Research Office, the Center for Quantum Networks, and the European Union’s Horizon 2020 Research and Innovation Program.

Share this news article on:

Related links.

  • Quantum Photonics and AI Laboratory
  • Terahertz Integrated Electronics Group
  • Research Laboratory of Electronics
  • Microsystems Technology Laboratories
  • Department of Electrical Engineering and Computer Science

Related Topics

  • Computer science and technology
  • Quantum computing
  • Electronics
  • Semiconductors
  • Electrical Engineering & Computer Science (eecs)
  • National Science Foundation (NSF)

Related Articles

This graphic depicts a stylized rendering of the quantum photonic chip and its assembly process. The bottom half of the image shows a functioning quantum micro-chiplet (QMC), which emits single-photon pulses that are routed and manipulated on a photonic integrated circuit (PIC). The top half of the image shows how this chip is made: Diamond QMCs are fabricated separately and then transferred into ...

Scaling up the quantum chip

MIT researchers have fabricated a diamond-based quantum sensor on a silicon chip using traditional fabrication techniques (pictured), which could enable low-cost quantum hardware.

Quantum sensing on a chip

research paper on o captain

Toward mass-producible quantum computers

Previous item Next item

More MIT News

A grid of 12 portrait photos of the new members.

MIT Corporation elects 10 term members, two life members

Read full story →

Diane Hoskins speaks on an indoor stage, at a lectern bearing MIT’s logo

Diane Hoskins ’79: How going off-track can lead new SA+P graduates to become integrators of ideas

Melissa Nobles stands at podium while speaking at MIT Commencement.

Chancellor Melissa Nobles’ address to MIT’s undergraduate Class of 2024

Noubar Afeyan speaks at a podium with the MIT seal on the front. Faculty and administrators in academic regalia are seated next to him.

Noubar Afeyan PhD ’87 gives new MIT graduates a special assignment

Noubar Afeyan stands at the podium.

Commencement address by Noubar Afeyan PhD ’87

MIT president Sally Kornbluth speaking at MIT’s Commencement at podium.

President Sally Kornbluth’s charge to the Class of 2024

  • More news on MIT News homepage →

Massachusetts Institute of Technology 77 Massachusetts Avenue, Cambridge, MA, USA

  • Map (opens in new window)
  • Events (opens in new window)
  • People (opens in new window)
  • Careers (opens in new window)
  • Accessibility
  • Social Media Hub
  • MIT on Facebook
  • MIT on YouTube
  • MIT on Instagram
  • Units based on Bleach characters
  • Unrivaled Intelligence
  • Spirit Warriors
  • Unworldly Beings

Research Captain (Mayuri Kurotsuchi)

  • View history

Story Mode Meta Unit

This unit is currently in the Story Mode meta, which means they are the one of the best and most effective units for clearing Story Mode in the game.

Research Captain is a 6-star unit based on the character Mayuri Kurotsuchi from Bleach . He can be obtained via the Hero Summon on Banner Z with a 1% chance.

Stats Overview

[ info ] - Skeleton (Artist) Buff - OFF

[ info ] - Skeleton (Artist) Buff - ON

★ Deployment - 2,000

  • Tower Type: Ground, AoE (Circle)
  • Damage: 6,500 (plus 45,500 poison damage) 22,750 (plus 159,250 poison damage)
  • Range: 50 62. 5
  • DPS: 1,625 5,687. 5
  • Damage: 13,923 (plus 97,461 poison damage) 48,730. 5 (plus 341,113. 5 poison damage)
  • DPS: 3,480. 75 12,182. 63

★ Upgrade 1 - 6,000

  • Damage: 27,900 (plus 195,300 poison damage) 97,650 (plus 683,550 poison damage)
  • DPS: 6,975 24,412. 5
  • Damage: 59,761. 8 (plus 418,332. 6 poison damage) 209,166. 3 (plus 1,464,164. 1 poison damage)
  • DPS: 14,940. 45 52,291. 58

★ Upgrade 2 - 9,000

  • Damage: 74,600 (plus 522,200 poison damage) 261,100 (plus 1,827,700 poison damage)
  • DPS: 18,650 65,275
  • Damage: 159,793. 2 (plus 1,118,552. 4 poison damage) 559,276. 2 (plus 3,914,933. 4 poison damage)
  • DPS: 39,948. 3 139,819. 05

★ Upgrade 3 - 13,000

  • Damage: 196,000 (plus 1,372,000 poison damage) 686,000 (plus 4,802,000 poison damage)
  • Range: 80 100
  • DPS: 32,666. 67 114,333. 33
  • + Poison Slash
  • Attack type changes to AoE (Cone)
  • Damage: 419,832 (plus 2,938,824 poison damage) 1,469,412 (plus 10,285,884 poison damage)
  • DPS: 69,972 244,902

★ Upgrade 4 - 20,000

  • Damage: 392,000 (plus 2,744,000 poison damage) 1,372,000 (plus 9,604,000 poison damage)
  • Range: 90 112. 5
  • DPS: 65,333. 33 228,666. 67
  • Damage: 839,664 (plus 5,877,648 poison damage) 2,938,824 (plus 20,571,768 poison damage)
  • DPS: 139,944 489,804

★ Upgrade 5 - 600,000

  • Damage: 700,000 (plus 4,900,000 poison damage) 2,450,000 (plus 17,150,000 poison damage)
  • Range: 100 125
  • DPS: 116,666. 67 408,333. 33
  • + Big Baby B-Kui
  • Attack type changes to AoE (Circle)
  • Damage: 1,499,400 (plus 10,495,800 poison damage) 5,247,900 (plus 36,735,300 poison damage)
  • DPS: 249,900 874,650

★ Upgrade 6 - 1,100,000

  • Damage: 1,560,000 (plus 10,920,000 poison damage) 5,460,000 (plus 38,220,000 poison damage)
  • Range: 10 12. 5
  • DPS: 213,698. 63 747,945. 21
  • Damage: 3,341,520 (plus 23,390,640 poison damage) 11,695,320 (plus 81,867,240 poison damage)
  • DPS: 457,742. 47 1,602,098. 63

Virus Effect

The Virus effect makes units 25% more potent to enchant damage. This means instead of taking 3x damage, enemies affected by the Virus will take 3.75x more damage than usual, if they face an enchant disadvantage. This effect does not apply to enemies without an enchant disadvantage or without an enchant at all.

Special Ability: Experimental Splash

Experimental Splash Ability Icon

Upon activation, all units within Research Captain's AoE (Circle) will be slowed and inflicted with the Virus effect. This ability has a cooldown of 120 seconds.

Unit Categories

Leader: Units in the Engineer Category gain Attack Boost +15%; +12% Bonus.

Troops sell for half their cost of deployment plus upgrades.

As shown in inventory

Character Navigation

Secondary chars.

Airren (Doomsday)

• Alien Soldier • Alien Soldier II • Alien Soldier III • Arachnid • Arachnid II • Arachnid III • Arachnid IV • Arachnid V • Arruncur • Arruncur II • Arruncur III • Arruncur IV • Arruncur V • Angel • Angel II • Angel III • Angel IV • Angel V • Bug Soldier • Bug Soldier II • Bug Soldier III • Bug Soldier IV • Bug Soldier V • Chef • Chef II • Chef III • Chef IV • Chef V • Cultist • Cultist II • Cultist III • Cultist IV • Cultist V • Curse • Curse II • Curse III • Curse IV • Curse V • Demon • Demon II • Demon III • Demon IV • Demon V • Desert Ninja • Desert Ninja II • Desert Ninja III • Desert Ninja IV • Desert Ninja V • Esper • Esper II • Esper III • Esper IV • Esper V • EXP • EXP II • EXP III • EXP IV • Evolved Namu • Evolved Namu II • Evolved Namu III • Evolved Namu IV • Evolved Namu V • Fiend • Fiend II • Fiend III • Fiend IV • Fiend V • Giant • Giant II • Giant III • Giant IV • Giant V • Homunculus • Homunculus II • Homunculus III • Homunculus IV • Homunculus V • Ice Soldier • Ice Soldier II • Ice Soldier III • Ice Soldier IV • Ice Soldier V • Mage • Mage II • Mage III • Mage IV • Mage V • Namu • Namu II • Namu III • Namu IV • Pirate Agent • Pirate Agent II • Pirate Agent III • Pirate Agent IV • Pirate Agent V • Sound Ninja • Sound Ninja II • Sound Ninja III • Strong Alien Soldier • Strong Alien Soldier II • Strong Alien Soldier III • Soul Swordsman • Soul Swordsman II • Soul Swordsman III • Soul Swordsman IV • Soul Swordsman V • Vampire • Vampire II • Vampire III • Vampire IV • Wizard • Wizard II • Wizard III • Wizard IV • Wizard V • Zio Agent • Zio Agent II • Zio Agent III • Zio Agent IV • Zio Agent V

  • 2 World 2 Raids
  • 3 Blood Queen (B-Kui)

IMAGES

  1. (PDF) Poem Analysis: "O Captain! My Captain!"

    research paper on o captain

  2. O Captain! My Captain! by on Prezi

    research paper on o captain

  3. O Captain! My Captain! (Walt Whitman)- Summary, Analysis & Explanation

    research paper on o captain

  4. O CAPTAIN, MY CAPTAIN BY WALT WHITMAN

    research paper on o captain

  5. Cheer Captain Research Paper

    research paper on o captain

  6. O Captain! My Captain! by Walt Whitman _ Poetry Foundation.pdf

    research paper on o captain

VIDEO

  1. O Captain! My Captain!

  2. O Captain! My Captain!

  3. poem for competition o captain my captain

  4. Appreciation of the poem ' O Captain ! My Captain !'

  5. The Making of Captain EO

  6. 2013 01 26 All State Choir O Captain My Captain

COMMENTS

  1. PDF An Analysis of Conceptual Metaphor in Walt Whitman's O Captain! My

    Abstract: From the perspective of cognitive linguistics, this paper takes the image of "captain" in Walt Whitman's O Captain! My Maptain! as the research object, and analyzes the source domain, target domain and their mapping relationship in the poem, aiming to deeply understand the definition and application of conceptual metaphor, and help ...

  2. PDF A Multimodal Discourse Analysis of Walt Whitman's Poem "O Captain! My

    A Multimodal Discourse Analysis of Walt Whitman's Poem "O Captain! My Captain!". Sch Int J Linguist Lit, 5(10): 339-343. 339 Scholars International Journal of Linguistics and Literature ... Halliday's systemic functional grammar, this paper seeks to explore its meaning from both literary and non-literary aspects. The ideational function ...

  3. A Multimodal Discourse Analysis of Walt Whitman's Poem "O Captain! My

    Abstract. "O Captain! My Captain!", written by Walt Whitman, one of the most talented poets in American history, is an elegy on the death of Pres. Abraham Lincoln. It portrays Lincoln as the ...

  4. A Multimodal Discourse Analysis of Walt Whitman's Poem "O Captain! My

    "O Captain! My Captain!", written by Walt Whitman, one of the most talented poets in American history, is an elegy on the death of Pres. Abraham Lincoln. It portrays Lincoln as the captain of a sea-worn ship, which implies the Union triumphant after the American Civil War. By drawing on multimodal discourse analysis and its theoretical framework of Halliday's systemic functional grammar ...

  5. O Captain! My Captain! A Dramatic Adaptation

    John Millington Synge (1871-1909) was an Irish playwright, prose writer, travel writer and collector of folklore. He wrote Riders to the Sea in 1904. The play has the spirit of classical tragedy. In this play the simple life of some people is described in a universal manner. Aristotle defined tragic hero as belonging to superior class.

  6. (PDF) A fresh look at "O Captain..."

    One of the most famous poems in American literature is Walt Whitman's "O Captain! My Captain!". Written after the assassination of Abraham Lincoln, it came to represent the sorrow of a nation, a nation seen as a ship that had lost its skipper. In this, the 150th anniversary of the beginning of the Civil War, many are re-examining the ...

  7. O Captain! My Captain!

    Research off-campus without worrying about access issues. ... Submit Paper. Search Add Email Alerts close Add Email Alerts Dialog. You are adding the following journals to your email alerts. Journal ... O Captain! My Captain! Walt Whitman. Journal of Education 1923 98: 6, 157-157

  8. O Captain! My Captain! Poem Summary and Analysis

    "O Captain! My Captain!" is an elegy written by Walt Whitman in 1865 to commemorate the death of President Abraham Lincoln. It was first published in Sequel to Drum-Taps (1865), a collection of Whitman's poems inspired by the events of the American Civil War.The poem is perhaps Whitman's most famous—which is ironic, since it is far more conventional in meter, form, and subject than ...

  9. O Captain! My Captain!

    Sign in. Access personal subscriptions, purchases, paired institutional or society access and free tools such as email alerts and saved searches.

  10. O Captain! My Captain! Full Text and Analysis

    My Captain!" is an elegy that employs an extended metaphor of a slain ship captain to represent the assassination of President Lincoln after he led the Union to victory in the American Civil War (1861-1865). Whitman juxtaposes celebrations of victory with images of the captain, who lies "fallen cold and dead," to commemorate Lincoln's ...

  11. Analysis and Summary of "O Captain! My Captain!" by Walt Whitman

    The speaker implores his Captain to get up because everything's for him. The bells, the music, the flowers, the wreaths and the flag are all for him. The gathered crowd is there to celebrate the Captain, and they can't wait to see him. The speaker shows denial by asking someone he knows is dead to "rise up". He can't fully accept that it's true.

  12. O Captain! My Captain!: leadership, virtue, and sport

    ABSTRACT There is a crisis of leadership in sport. Leadership as an athletic excellence is under threat from the deepening influence of coaches on in-game decisionmaking. To appreciate what is being lost in this shift of responsibility, it is necessary to understand the challenge of athlete leadership. Captaincy is the quintessential on-field leadership role. However, the role of captain, and ...

  13. O Captain! My Captain!: leadership, virtue, and sport

    However, the role of captain, and athlete leadership more widely, remains philosophically untheorized. This paper initiates a discussion of leadership in sport by providing the first normative account of captaincy. Rugby union is used as a case study, as this sport preserves an especially demanding and complex form of captaincy that may provide ...

  14. An Analysis of Conceptual Metaphor in Walt Whitman's O Captain! My

    From the perspective of cognitive linguistics, this paper takes the image of "captain" in Walt Whitman's O Captain! My Maptain! as the research object, and analyzes the source domain, target domain and their mapping relationship in the poem, aiming to deeply understand the definition and application of conceptual metaphor, and help better understand the poem.

  15. "O Captain! My Captain!" by Walt Whitman: Literary Devices

    'O Captain! My Captain! ' is an allegorical poem written by Walt Whitman. The poem is one of the best-extended allegorical poems. Among the significant poetic concepts and literary devices that make his poem exceptional are the sound of words (a combination of words to reveal a special effect when we read them) and allusion (allegory, referring to ...

  16. Symbolism and Imagery in O Captain! My Captain!

    In this essay, symbolism and imagery in O Captain, My Captain shall be analyzed in detail. Symbolism element is used to emphasize internalized poetry aspects to describe the feeling and thoughts of a poet due to a lack of better words to describe them. It uses an object, an idea, a person, or a place to bring out a more profound meaning rather ...

  17. O Captain! My Captain! by Walt Whitman

    O Captain! my Captain! our fearful trip is done, The ship has weather'd every rack, the prize we sought is won, The port is near, the bells I hear, the people all exulting, While follow eyes the steady keel, the vessel grim and daring; But O heart! heart! heart! O the bleeding drops of red, Where on the deck my Captain lies, Fallen cold and dead.

  18. O Captain My Captain Poem Analysis

    B. Thesis statement: An analysis of the poem "O Captain! My Captain!" reveals deeper themes and symbolism that contribute to its enduring popularity. II. Historical Context of the Poem. A. The American Civil War, fought from 1861 to 1865, was a pivotal moment in American history that pitted the Union against the Confederacy in a battle over the abolition of slavery.

  19. Thesis Statement on Basic analysis of Whitman's "O Captain! My Captain

    Length: 3 pages (808 words) "The words of my books," said Walt Whitman, "are nothing, the drift of it everything." The various themes in Whitman's works are the most important, the actual erudite terms are only important in upholding these ideas. The main themes of his "O Captain! My captain!" are death of a hero, family, a journey, and defeat ...

  20. Thesis Statement on Walt Whitman (O, Captain, My Captain)

    Length: 3 pages (844 words) " O, Captain! My Captain? " is one of Whitman's famous poems. It is an elegy on the death of Abraham Lincoln, the president of the U.S.A. He was Whitman's hero and most beloved leader. He was kind, gentle, sympathetic yet brave and determined. He was too full of the milk of human kindness that he couldn't endure the ...

  21. Modular, scalable hardware architecture for a quantum computer

    We are proposing a brand new architecture and a fabrication technology that can support the scalability requirements of a hardware system for a quantum computer," says Linsen Li, an electrical engineering and computer science (EECS) graduate student and lead author of a paper on this architecture.

  22. Research Captain (Mayuri Kurotsuchi)

    Research Captain is a 6-star unit based on the character Mayuri Kurotsuchi from Bleach. He can be obtained via the Hero Summon on Banner Z with a 1% chance. The Virus effect makes units 25% more potent to enchant damage. This means instead of taking 3x damage, enemies affected by the Virus will take 3.75x more damage than usual, if they face an enchant disadvantage. This effect does not apply ...