Proceedings of the National Academy of Sciences of the United States of America

About the PNAS Member Editor
Name Leggett, Anthony
Location University of Illinois at Urbana-Champaign
Primary Field Physics
Secondary Field Applied Physical Sciences
 Election Citation
Leggett shaped the theoretical understanding of normal and superfluid helium liquids and other strongly coupled superfluids. He set directions for research in the quantum physics of macroscopic dissipative systems and use of condensed systems to test the foundations of quantum mechanics.
 Research Interests
My research lies mainly within the fields of theoretical condensed matter physics and the foundations of quantum mechanics. I have been particularly interested in the possibility of using special condensed-matter systems such as Josephson devices to test the validity of the extrapolation of the quantum formalism to the macroscopic level; this interest has led to a considerable amount of technical work on the application of quantum mechanics to collective variables and in particular on ways of incorporating dissipation into the calculations. I am also interested in the theory of superfluid liquid 3-He, especially under extreme nonequilibrium conditions, in high-temperature superconductivity, and in the newly realized system of Bose-condensed atomic gases.

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