Theory of SU(N) Fermi liquids

S.-K. Yip, Bor-Luen Huang, and Jung-Shen Kao
Phys. Rev. A 89, 043610 – Published 15 April 2014

Abstract

We generalize the Fermi-liquid theory to N component systems with SU(N) symmetry. We evaluate the Fermi-liquid parameters, effective mass, compressibility, and spin susceptibilities for a repulsive gas. We emphasize the important role of induced density fluctuations when N is large. These fluctuations dramatically modify the properties of the gas, in particular the spin susceptibilities, from mean-field predictions.

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  • Received 19 December 2013
  • Revised 11 February 2014

DOI:https://doi.org/10.1103/PhysRevA.89.043610

©2014 American Physical Society

Authors & Affiliations

S.-K. Yip1,2, Bor-Luen Huang1, and Jung-Shen Kao1,3

  • 1Institute of Physics, Academia Sinica, Taipei 115, Taiwan
  • 2Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan
  • 3Department of Physics, National Taiwan University, Taipei 106, Taiwan

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Issue

Vol. 89, Iss. 4 — April 2014

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