Professor Leggett is the John D. and Catherine T. MacArthur Professor and Center for Advanced Study Professor of Physics at the University of Illinois. He is renowned for his work in the theory of low-temperature physics and is a 2003 Nobel Prize winner for his work on superfluids. He is a member of the National Academy of Sciences, is a Fellow of the Royal Society (U.K.), and is an Honorary Fellow of the Institute of Physics (U.K.). Professor Leggett was knighted by Queen Elizabeth II in 2005.

Talks by Anthony Leggett

Glass: The Cinderella Problem of Condensed Matter Physics

Anthony Leggett University of Illinois at Urbana-Champaign (UIUC)
Amorphous materials (glasses) probably constitute >90% of the solid matter surrounding us in everyday life,yet traditional textbooks of condensed matter physics devote virtually no space to them.Crudely speaking,the puzzles in the behavior of glasses can be divided into three major areas:the glass transition itself,the characteristic long-term memory effects and the near-equilibrium thermal,dielectric and transport properties;this talk focusses entirely on the third area.Over the last 40 years it has become apparent that the thermal and transport properties are not only qualitatively

Does entanglement persist at the macroscopic level?

Anthony Leggett University of Illinois at Urbana-Champaign (UIUC)
The quantum states postulated to occur in situations of the "Schroedinger's Cat" type are essentially N-particle GHZ states with N very large compared to 1,and their observation would thus be particularly compelling evidence for the ubiquity of the phenomenon of entanglement. However, in the traditional quantum measurement literature considerable scepticism has been expressed about the observability of this kind of "macroscopically entangled" state, primarily because of the putatively disastrous effect on it of decoherence.

Meet a Scientist - Sir Anthony Leggett

Anthony Leggett University of Illinois at Urbana-Champaign (UIUC)
Condensed matter systems at ultra low-temperature that show purely quantum phenomena – even on big scales (superfluidity, superconductivity, Bose-Einstein condensates); measurements in the quantum world; probing the foundations of quantum theory.

The Physics of Information: From Entanglement to Black Holes

Do ideas about information and reality inspire fruitful new approaches to the hardest problems of modern physics? What can we learn about the paradoxes of quantum mechanics, the beginning of the universe and our understanding of black holes by thinking about the very essence of information? The answers to these questions are surprising and enlightening, but also controversial. The topic of information within physics has involved some of the 20th century\'s greatest scientists in long-running intellectual battles that continue to the present day.