# Tsung-Dao Lee

> Chinese-American physicist (1926–2024)

**Wikidata**: [Q183679](https://www.wikidata.org/wiki/Q183679)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Tsung-Dao_Lee)  
**Source**: https://4ort.xyz/entity/tsung-dao-lee

## Summary

Tsung-Dao Lee was born on November 24, 1926, in Shanghai [1][2] and died on August 4, 2024, in San Francisco [3][4]. He held citizenship in the United States, the Republic of China, and Taiwan . Lee worked as a physicist, university teacher, and theoretical physicist , specializing in the fields of particle physics, physics, and theoretical physics [5].His academic career included employment at Columbia University, the University of California, Berkeley, and Zhejiang University . Lee was married to Jeannette Hui-Chun Chin [6]. He received numerous accolades, including the Nobel Prize in Physics, a Guggenheim Fellowship, the Oskar Klein Medal, the Matteucci Medal, and recognition as a Fellow of the American Physical Society, alongside an honorary doctorate from Peking University and two additional honors [7][8][9][10].Lee was a member of several prestigious organizations, including the Accademia Nazionale dei Lincei, the Pontifical Academy of Sciences, the National Academy of Sciences, and the Chinese Academy of Sciences .

## Summary
Tsung-Dao Lee was a Chinese-American physicist (1926–2024) who made groundbreaking contributions to particle physics, particularly through his work on parity violation and the development of the Lee-Yang theorem. He was awarded the Nobel Prize in Physics in 1957 for his theoretical work on parity non-conservation in weak interactions, a discovery that reshaped fundamental physics. Lee was a professor at Columbia University and a member of multiple prestigious scientific academies, including the National Academy of Sciences and the Chinese Academy of Sciences.

## Biography
- Born: November 24, 1926, in Shanghai, China
- Nationality: Chinese-American
- Education:
  - Bachelor of Science, National Southwestern Associated University (1946)
  - Master of Science, National Southwestern Associated University (1947)
  - Doctor of Philosophy, Columbia University (1951)
- Known for: Pioneering work on parity violation and the Lee-Yang theorem
- Employer(s):
  - Columbia University (1951–2024)
  - Zhejiang University (1985–2024)
  - National Southwestern Associated University (1946–1947)
- Field(s): Theoretical physics, particle physics

## Contributions
- **Parity Non-Conservation**: Co-discovered with Chen Ning Yang that weak interactions violate parity symmetry, leading to the Nobel Prize in Physics (1957). This discovery fundamentally altered the understanding of fundamental forces.
- **Lee-Yang Theorem**: Developed with Chen Ning Yang, proving that the number of solutions to certain polynomial equations in physics is always positive, a foundational result in statistical mechanics.
- **Theoretical Physics Research**: Made significant contributions to quantum field theory, renormalization, and the renormalization group, influencing modern particle physics.
- **Academic Leadership**: Served as a professor at Columbia University and Zhejiang University, shaping generations of physicists.
- **Scientific Recognition**: Received numerous awards, including the Nobel Prize, the National Medal of Science, and the Wolf Prize in Physics.

## FAQs
**What was Tsung-Dao Lee's most famous achievement?**
Tsung-Dao Lee is best known for co-discovering parity violation in weak interactions with Chen Ning Yang, a discovery that earned them the Nobel Prize in Physics in 1957. This work fundamentally changed our understanding of fundamental forces in nature.

**Where did Tsung-Dao Lee study?**
Lee earned his Bachelor of Science and Master of Science from National Southwestern Associated University in China before completing his Doctor of Philosophy at Columbia University in the United States.

**What universities did Tsung-Dao Lee teach at?**
Lee taught at Columbia University in the United States and Zhejiang University in China, where he held a distinguished professorship.

**What awards did Tsung-Dao Lee receive?**
Lee received numerous prestigious awards, including the Nobel Prize in Physics (1957), the National Medal of Science (1999), and the Wolf Prize in Physics (2005).

**What was the Lee-Yang theorem?**
The Lee-Yang theorem, developed by Lee and Chen Ning Yang, states that the number of solutions to certain polynomial equations in physics is always positive, a result that has profound implications for statistical mechanics.

## Why They Matter
Tsung-Dao Lee's work on parity violation and the Lee-Yang theorem revolutionized particle physics and statistical mechanics. His discovery of parity non-conservation in weak interactions provided critical evidence for the existence of the weak nuclear force and laid the groundwork for the Standard Model of particle physics. The Lee-Yang theorem became a cornerstone of statistical mechanics, influencing research in condensed matter physics and quantum field theory. Lee's contributions have had a lasting impact on theoretical physics, inspiring generations of researchers. His work continues to shape our understanding of fundamental forces and the behavior of particles at the smallest scales.

## Notable For
- **Nobel Prize in Physics (1957)**: Awarded for co-discovering parity violation with Chen Ning Yang.
- **Wolf Prize in Physics (2005)**: Recognized for his groundbreaking contributions to theoretical physics.
- **National Medal of Science (1999)**: Honored for his pioneering work in particle physics.
- **Lee-Yang Theorem**: Developed a fundamental result in statistical mechanics with Chen Ning Yang.
- **Distinguished Professor at Zhejiang University**: Held a prestigious academic position in China.
- **Member of Multiple Scientific Academies**: Included the National Academy of Sciences, Chinese Academy of Sciences, and Accademia Nazionale dei Lincei.
- **Pioneering Research in Quantum Field Theory**: Made significant contributions to renormalization and the renormalization group.
- **Influential Educator**: Shaped the careers of many physicists through his teaching at Columbia University.

## Body

### Early Life and Education
Tsung-Dao Lee was born on November 24, 1926, in Shanghai, China. He completed his Bachelor of Science and Master of Science at National Southwestern Associated University in China before pursuing his Doctor of Philosophy at Columbia University in the United States. His early education laid the foundation for his groundbreaking work in theoretical physics.

### Academic Career
Lee began his academic career at Columbia University in 1951, where he remained a professor until his passing in 2024. He also held a distinguished professorship at Zhejiang University in China from 1985 until his death. His teaching and mentorship at these institutions influenced numerous physicists and contributed to the advancement of theoretical physics.

### Scientific Contributions
#### Parity Violation and the Nobel Prize
In 1956, Lee and Chen Ning Yang co-discovered parity violation in weak interactions, a phenomenon that violated the then-accepted symmetry principles. This discovery earned them the Nobel Prize in Physics in 1957. Their work provided critical evidence for the existence of the weak nuclear force and laid the groundwork for the Standard Model of particle physics.

#### The Lee-Yang Theorem
Lee and Yang developed the Lee-Yang theorem, which states that the number of solutions to certain polynomial equations in physics is always positive. This theorem has profound implications for statistical mechanics and has been widely applied in condensed matter physics and quantum field theory.

#### Theoretical Physics Research
Lee made significant contributions to quantum field theory, renormalization, and the renormalization group. His work in these areas has had a lasting impact on theoretical physics and continues to influence research in particle physics and quantum mechanics.

### Awards and Recognition
Lee received numerous prestigious awards throughout his career, including:
- **Nobel Prize in Physics (1957)**: Awarded for his work on parity violation.
- **National Medal of Science (1999)**: Honored for his pioneering contributions to particle physics.
- **Wolf Prize in Physics (2005)**: Recognized for his groundbreaking work in theoretical physics.
- **Oskar Klein Medal (1988)**: Awarded by Stockholm University and the Royal Swedish Academy of Sciences.
- **Matteucci Medal (1996)**: Italian award for physicists.

### Memberships and Affiliations
Lee was a member of multiple prestigious scientific academies, including:
- **National Academy of Sciences**: United States
- **Chinese Academy of Sciences**: China
- **Accademia Nazionale dei Lincei**: Italy
- **American Academy of Arts and Sciences**: United States
- **American Philosophical Society**: United States

### Legacy and Influence
Tsung-Dao Lee's work has had a profound and lasting impact on theoretical physics. His discovery of parity violation and the Lee-Yang theorem have become foundational concepts in particle physics and statistical mechanics. Lee's contributions have inspired generations of researchers and continue to shape our understanding of fundamental forces and the behavior of particles at the smallest scales. His legacy as a pioneer in theoretical physics ensures his place among the most influential scientists of the 20th century.

## References

1. Integrated Authority File
2. [Source](https://www.nytimes.com/2024/08/05/science/tsung-dao-lee-dead.html)
3. Czech National Authority Database
4. [The Nobel Prize in Physics 1957. nobelprize.org](https://www.nobelprize.org/prizes/physics/1957/summary/)
5. [Table showing prize amounts. Nobel Foundation. 2019](https://www.nobelprize.org/uploads/2019/04/prize-amounts-2020.pdf)
6. [Previous Oskar Klein Memorial Lectures](http://www.okc.albanova.se/research/memorial-lecture/earlier-lectures)
7. [Tsung-Dao Lee. Carnegie Corporation of New York](https://www.carnegie.org/awards/honoree/tsung-dao-lee/)
8. The Academic Family Tree
9. International Standard Name Identifier
10. Virtual International Authority File
11. CiNii Research
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14. [Source](https://libserv.aip.org/ipac20/ipac.jsp?session=16Q1X106409S5.412547&menu=search&aspect=power&npp=10&ipp=20&spp=20&profile=rev-all&ri=&index=.GW&term=HASKELL+A.+REICH+COLLECTION+OF+STUDENT+NOTES%2C+1945-1954&oper=AND&x=11&y=4&aspect=power&index=.TW&term=&oper=AND&index=.AW&term=&oper=AND&index=.SW&term=&ultype=&uloper=%3D&ullimit=&ultype=&uloper=%3D&ullimit=&sort=)
15. [Tsung-Dao Lee: Biographical. nobelprize.org](http://www.nobelprize.org/nobel_prizes/physics/laureates/1957/lee-bio.html)
16. Physicists: Biographical Dictionary
17. [Nobel Prize-winning physicist Tsung-Dao Lee dies at age 97. 2024](https://www.washingtonpost.com/world/2024/08/05/tsung-dao-lee-nobel-physics-obituary/ed420e2e-5327-11ef-9a60-5b6e8b4da7c0_story.html)
18. [Tsung-Dao Lee, 97, Physicist Who Challenged a Law of Nature, Dies. 2024](https://www.nytimes.com/2024/08/05/science/tsung-dao-lee-dead.html)
19. Freebase Data Dumps. 2013
20. nobelprize.org
21. CONOR.SI
22. [Source](https://inspirehep.net/authors/1000730)
23. Autoritats UB
24. Mathematics Genealogy Project