Physics – Condensed Matter
Scientific paper
1993-02-01
Physics
Condensed Matter
99 journal pages, plain Tex, 13 figures not included (please request), UMN-TH-1106/92
Scientific paper
(Review) Properties of neutral and charged anyon fluids are examined, with the main focus on the question whether or not a charged anyon fluid exhibits a superconductivity at zero and finite temperature. Quantum mechanics of anyon fluids is precisely described by Chern-Simons gauge theory. The random phase approximation (RPA), the linearized self-consistent field method (SCF), and the hydrodynamic approach employed in the early analysis of anyon fluids are all equivalent. Relations and differences between neutral and charged anyon fluids are discussed. It is necessary to go beyond RPA and the linearized SCF, and possively beyond the Hartree-Fock approximation, to correctly describe various phenomena such as the flux quantization, vortex formation, and phase transition. Topics includes: Anyons, Aharonov-Bohm effect, Chern-Simons gauge theory, Hartree-Fock ground state, RPA and SCF, Path integral representation, RPA = linearized SCF, Response functions, Phonons and plasmons, Hydrodynamic description, Effective theory, Meissner effect at zero and finite temperature, de Haas - van Alphen effect in SCF, Thermodynamic potential in inhomogeneous fields, T_c, Other important issues. (To appear in Int. J. Mod. Phys. B)
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