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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). [5] 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 ...
The Leggett–Garg inequality, [1] named for Anthony James Leggett and Anupam Garg, is a mathematical inequality fulfilled by all macrorealistic physical theories.Here, macrorealism (macroscopic realism) is a classical worldview defined by the conjunction of two postulates, of which the second has actually nothing to do with “macro-realism”: [1]
Anthony J. Leggett "for theoretical contributions to our fundamental understanding of normal and superfluid Fermi liquids. His theory of magnetic resonance in the superfluid phases of 3 He provided the key to deciphering their mysteries and an invaluable guide in their subsequent exploration." Isidor Rudnick
Scientists have officially spotted characteristics of superfluidity (a quantum fluid with zero viscosity) inside a two-dimensional supersolid for the first time.
In physics, the Leggett inequalities, [1] named for Anthony James Leggett, who derived them, are a related pair of mathematical expressions concerning the correlations of properties of entangled particles. (As published by Leggett, the inequalities were exemplified in terms of relative angles of elliptical and linear polarizations.)
Anthony James Leggett: for his outstanding contribution to the theory of superfluid He 3. [14] 1976: David M. Lee: for their discovery in 1972 of the new low temperature phases of liquid helium-3. [15] [16] Douglas D. Osheroff: Robert C. Richardson: 1973: Peter Kapitza: for distinguished work in the field of low-temperature physics. [17] [18 ...
for key insights into the broad range of condensed matter physics: Leggett on superfluidity of the light helium isotope and macroscopic quantum phenomena; and Halperin on two- dimensional melting, disordered systems and strongly interacting electrons. Anthony J. Leggett United Kingdom / United States 2004: Robert Brout Belgium
Superfluid vacuum theory (SVT) is an approach in theoretical physics and quantum mechanics where the physical vacuum is viewed as superfluid. [citation needed] The ultimate goal of the approach is to develop scientific models that unify quantum mechanics (describing three of the four known fundamental interactions) with gravity.