Anthony James Leggett facts for kids
Quick facts for kids
Sir
Anthony Leggett
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Leggett in 2007
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| Born |
Anthony James Leggett
26 March 1938 Camberwell, London, England
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| Died | 8 March 2026 (aged 87) |
| Citizenship | United Kingdom United States |
| Alma mater | University of Oxford (BA, DPhil) |
| Known for |
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| Spouse(s) |
Haruko Kinase
(m. 1972) |
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| Scientific career | |
| Fields | Physics |
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| Thesis | Some Problems in the Theory of Many-Body Systems (1964) |
| Doctoral advisor | Dirk ter Haar |
| Doctoral students |
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Sir Anthony James Leggett (born March 26, 1938) was a brilliant British-American theoretical physicist. He passed away on March 8, 2026. He was a respected professor at the University of Illinois Urbana-Champaign (UIUC).
Many people saw Leggett as a world leader in understanding how things behave at very cold temperatures. This field is called low-temperature physics. His important work on "superfluidity" earned him the Nobel Prize in Physics in 2003. He helped scientists understand how liquids like helium act when they become "superfluids." He also guided research into how quantum physics works in larger systems. He explored how to test the basic rules of quantum mechanics.
Contents
Early Life and Education
Anthony Leggett was born in Camberwell, south London, England. This was on March 26, 1938. He grew up in a Catholic family. His father was a secondary school teacher. He taught physics, chemistry, and mathematics. His mother also taught math for a time. Anthony was the oldest of five children.
When World War II began, Anthony was very young. He was moved to a small village called Englefield Green for safety. He stayed there for the entire war. After the war ended, he returned to his home in London. He attended a local Catholic primary school. Later, he passed an important exam and went to Wimbledon College.
He then attended Beaumont College, a special Jesuit school. At first, he mainly studied classics, which was considered a very important subject. However, his father also ran a science club for his younger son and a few others. Anthony was a very bright student. In his last year at Beaumont, he won every prize for the subjects he studied.
Anthony won a scholarship to Balliol College, Oxford, in 1954. He started at University of Oxford the next year. He first studied classics, a degree known as Literae Humaniores. After finishing this, he began a second degree in physics. He studied physics at Merton College, Oxford.
He worked with Professor Dirk ter Haar for his advanced degree. His research focused on understanding liquid helium. Specifically, he studied its "superfluid" properties. Oxford University later gave him an Honorary DLitt in 2005.
Career Journey in Physics
After his studies, Anthony Leggett worked as a researcher. He spent a year at UIUC. Then he spent another year researching in Japan. He worked with Professor Takeo Matsubara at Kyoto University.
He also spent time at Oxford, Harvard, and Illinois. In 1967, he became a lecturer at the University of Sussex in England. He worked there for about fifteen years. During this time, he also spent time researching in Japan and Ghana.
In 1982, he accepted a special teaching position at UIUC. He moved there in 1983. He remained at UIUC for the rest of his career.
Leggett's research interests changed over time. He studied how glasses behave at low temperatures. He also looked into "high-temperature superconductivity." He researched Bose-Einstein condensates in atomic gases. Most importantly, he explored how quantum mechanics works in everyday objects. He wanted to see if its rules apply to larger systems.
From 2006 to 2016, he also held a position at the Institute for Quantum Computing in Canada. As of April 2023, he was the chief scientist at the Institute for Condensed Matter Theory. This is a research institute at UIUC.
Groundbreaking Research
Sir Anthony Leggett's research explored many exciting areas of physics. He studied cuprate superconductivity. This is when materials can conduct electricity with no resistance. He also researched superfluidity in highly degenerate atomic gases. This is when liquids flow without any friction.
He also looked into how quantum mechanics works. Quantum mechanics describes how the universe behaves at a very tiny level. He wanted to see if these rules still apply to larger objects. He explored topological quantum computation.
In 2005, he had a discussion with another Nobel Prize winner, Norman Ramsey. They debated whether scientists should try to change quantum theory. Leggett believed it was important to keep exploring and testing these ideas. He thought quantum mechanics might not fully explain everything. This included the "quantum measurement problem."
Awards and Recognitions
Sir Anthony Leggett received many important awards for his work. He was a member of several prestigious science academies. These included the United States National Academy of Sciences. He was elected a Fellow of the Royal Society (FRS) in 1980.
In 2003, he won the Nobel Prize in Physics. He shared this award with V. L. Ginzburg and A. A. Abrikosov. They were recognized for their important ideas about superconductors and superfluids.
In 2004, he was appointed Knight Commander of the Order of the British Empire (KBE). This honor was given by the Queen for his great contributions to physics. He also won the Wolf Prize in Physics in 2002/2003. This was for his research on condensed forms of matter. He also received the Eugene Feenberg Memorial Medal in 1999.
Personal Life and Passing
In June 1973, Anthony Leggett married Haruko Kinase. They met at Sussex University in England. In 1978, they had a daughter named Asako. His wife, Haruko, earned a PhD in cultural anthropology from UIUC. She researched the hospice system. Their daughter, Asako, also graduated from UIUC. She studied geography and chemistry.
Sir Anthony Leggett passed away on March 8, 2026, at the age of 87.
See also
In Spanish: Anthony J. Leggett para niños
- List of University of Waterloo people
