Anthony Leget

Person

A Nobel Prize-winning physicist who posed the foundational question that inspired John Martinis's experiment: 'Do macroscopic objects behave quantum mechanically?'


First Mentioned

10/28/2025, 4:46:48 AM

Last Updated

10/28/2025, 4:48:37 AM

Research Retrieved

10/28/2025, 4:48:37 AM

Summary

Sir Anthony James Leggett is a distinguished British-American theoretical physicist, renowned for his pioneering contributions to low-temperature physics, particularly his seminal work on superfluidity, which earned him a share of the 2003 Nobel Prize in Physics. His profound insights also extended to macroscopic quantum mechanics, where a question he posed inspired John Martinis's groundbreaking 1985 experiment at UC Berkeley. This experiment, demonstrating quantum phenomena in a macroscopic superconducting circuit, provided crucial experimental validation for Macroscopic Quantum Mechanics and laid a fundamental foundation for the field of quantum computing. Leggett is currently a professor emeritus at the University of Illinois Urbana-Champaign, where he has been a faculty member since 1983.

Referenced in 1 Document
Research Data
Extracted Attributes
  • Born

    1938-03-26, Camberwell, London, England

  • Field

    Theoretical Physics, Low-Temperature Physics, Condensed Matter Physics, Topological Physics

  • Honors

    Knighted (KBE) by Queen Elizabeth II (2004), Fellow of the Royal Society (1980), Fellow of the American Physical Society (1985), Honorary Fellow of the Institute of Physics (1998), Member of the National Academy of Sciences, American Philosophical Society, American Academy of Arts and Sciences, Russian Academy of Sciences (foreign member), Indian National Science Academy

  • Spouse

    Haruko Kinase

  • Full Name

    Sir Anthony James Leggett

  • Known For

    Caldeira–Leggett model of quantum dissipation, Leggett–Garg inequality, Leggett inequality, Superfluid phase of helium-3

  • Alma Mater

    University of Oxford (BA, DPhil)

  • Nationality

    British, American

  • Other Titles

    John D. and Catherine T. MacArthur Professor, Center for Advanced Study Professor of Physics

  • Current Position

    Professor Emeritus, University of Illinois Urbana-Champaign (UIUC)

  • Nobel Prize in Physics

    2003 (shared with Alexey A. Abrikosov and Vitaly L. Ginzburg)

  • Nobel Prize Awarded For

    Pioneering work on superfluidity

Timeline
  • Born Anthony James Leggett in Camberwell, London, England. (Source: web_search_results)

    1938-03-26

  • Received a Ph.D. in physics from the University of Oxford. (Source: web_search_results)

    1964

  • Joined the faculty of the University of Sussex. (Source: web_search_results)

    1967

  • Married Haruko Kinase. (Source: web_search_results)

    1972

  • Elected a Fellow of the Royal Society (FRS). (Source: web_search_results)

    1980

  • Moved to the University of Illinois at Urbana-Champaign, where he became a faculty member. (Source: web_search_results)

    1983

  • Posed a question that inspired John Martinis's groundbreaking experiment on macroscopic quantum mechanics at UC Berkeley. (Source: related_documents)

    1985

  • Elected a Fellow of the American Physical Society. (Source: web_search_results)

    1985

  • Elected an Honorary Fellow of the Institute of Physics (HonFInstP). (Source: web_search_results)

    1998

  • Awarded the Nobel Prize in Physics for his pioneering work on superfluidity, shared with Alexey A. Abrikosov and Vitaly L. Ginzburg. (Source: web_search_results)

    2003

  • Knighted (KBE) by Queen Elizabeth II for services to physics. (Source: web_search_results)

    2004

List of Latin phrases (full)

This article lists direct English translations of common Latin phrases. Some of the phrases are themselves translations of Greek phrases. This list is a combination of the twenty page-by-page "List of Latin phrases" articles:

Web Search Results
  • Anthony James Leggett - Wikipedia

    Sir Anthony James Leggett (born 26 March 1938) is a British–American theoretical physicist and professor emeritus at the University of Illinois Urbana-Champaign (UIUC). Leggett is widely recognised as a world leader in the theory of low-temperature physics, and his pioneering work on superfluidity was recognised by the 2003 Nobel Prize in Physics. He has shaped the theoretical understanding of normal and superfluid helium liquids and strongly coupled superfluids. He set directions for research [...] | Sir Anthony Leggett KBE FRS HonFInstP | | --- | | Leggett in 2007 | | | Born | Anthony James Leggett (1938-03-26) 26 March 1938 (age 87) Camberwell, London, England | | Citizenship | United Kingdom United States | | Alma mater | University of Oxford (BA, DPhil) | | Known for | Caldeira–Leggett model") of quantum dissipation Leggett–Garg inequality Leggett inequality Superfluid phase of helium-3 | | Spouse | Haruko Kinase ​ (m. 1972)​ | [...] ## Awards and honours Leggett is a member of the National Academy of Sciences, the American Philosophical Society, the American Academy of Arts and Sciences, the Russian Academy of Sciences (foreign member), the Indian National Science Academy, and was elected a Fellow of the Royal Society (FRS) in 1980, a Fellow of the American Physical Society in 1985, and American Institute of Physics, and an Honorary Fellow of the Institute of Physics (HonFInstP) in 1998.

  • Anthony J. Leggett | Biography, Nobel Prize, & Facts - Britannica

    Anthony J. Leggett (born March 26, 1938, London, England) is a British physicist, who won the Nobel Prize for Physics in 2003 for his seminal work on superfluidity. He shared the award with the Russian physicists Alexey A. Abrikosov and Vitaly L. Ginzburg. Leggett received a Ph.D. in physics from the University of Oxford in 1964. In 1967 he joined the faculty of the University of Sussex, where he served until 1983, when he moved to the University of Illinois at Urbana-Champaign. [...] Anthony James Leggett John D. and Catherine T. MacArthur Professor Professor and Professor of Physics, University of Illinois at Urbana-Champaign. Winner of 2003 Nobel Prize for Physics. Author of The Problems of Physics... Anthony James Leggett Fact-checked by The Editors of Encyclopaedia Britannica [...] SUBSCRIBE Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos # Anthony J. Leggett British physicist Print Also known as: Sir Anthony James Leggett Written by The Editors of Encyclopaedia Britannica

  • Anthony Leggett - Chicago Quantum Exchange

    Sir Anthony J. Leggett, the John D. and Catherine T. MacArthur Professor and Center for Advanced Study Professor of Physics, has been a faculty member at Illinois since 1983. He is widely recognized as a world leader in the theory of low-temperature physics, and his pioneering work on superfluidity was recognized by the 2003 Nobel Prize in Physics. He is a member of the National Academy of Sciences, the American Philosophical Society, the American Academy of Arts and Sciences, the Russian [...] Skip to main content Home Search # Anthony Leggett #### Professor, UIUC Research topics: Quantum Computing, Condensed Matter Physics, Topological Physics Websites: Contact: aleggett@illinois.edu [...] Academy of Sciences (foreign member), and is a Fellow of the Royal Society (U.K.), the American Physical Society, and the American Institute of Physics. He is an Honorary Fellow of the Institute of Physics (U.K.). He was knighted (KBE) by Queen Elizabeth II in 2004 "for services to physics."

  • Tony Leggett | Physics - University of Illinois Urbana-Champaign

    Sir Anthony J. Leggett, the John D. and Catherine T. MacArthur Professor and Center for Advanced Study Professor of Physics, has been a faculty member at Illinois since 1983. He is widely recognized as a world leader in the theory of low-temperature physics, and his pioneering work on superfluidity was recognized by the 2003 Nobel Prize in Physics. He is a member of the National Academy of Sciences, the American Philosophical Society, the American Academy of Arts and Sciences, the Russian [...] Research on one long-studied path to topological quantum computing raises new questions Nobel laureate Sir Anthony J. Leggett turns 80! Celebrate with us! Fermilab neutrino experiment proves Leggett and Garg's theory in a new regime Leggett to be inducted to Engineering at Illinois Hall of Fame ## Cookie Notice [...] Academy of Sciences (foreign member), and is a Fellow of the Royal Society (U.K.), the American Physical Society, and the American Institute of Physics. He is an Honorary Fellow of the Institute of Physics (U.K.). He was knighted (KBE) by Queen Elizabeth II in 2004 "for services to physics."

  • CV - Sir Anthony J. Leggett - Lindau Mediatheque

    The eldest of five children, Anthony James Leggett was born in London in March 1938 but was evacuated to Windsor, Surrey, during the war. He returned at the end of the war and attended the local Catholic primary school, and then Sacred Heart College in Wimbledon and Beaumont College in Windsor, where his father taught science. Anthony primarily studied classics, however, and won a scholarship to Balliol College, Oxford, in 1955. After completing his degree he transferred to Merton College to [...] It was for his explanation of how the atoms in superfluid He-3 are ordered and interact that Sir Anthony J. Leggett was awarded a one-third share of the 2003 Nobel Prize for Physics, along with Alexei Abrikosov and Vitaly L. Ginzburg for their work with superconductors. [...] Anthony Leggett’s sketch concerns the behaviour of an isotope of helium at very low temperatures. Close to absolute zero, helium-3 (3He) displays the property of superfluidity, being able to creep up the walls of the vessel that holds it, as if it had no viscosity whatsoever. The drawing depicts both the experimental observation and the theoretical explanation that allowed Leggett to account for this phenomenon.