Competition and duality correspondence between chiral and superconducting channels in (2+1)-dimensional four-fermion models with fermion number and chiral chemical potentials

D. Ebert, T. G. Khunjua, K. G. Klimenko, and V. C. Zhukovsky
Phys. Rev. D 93, 105022 – Published 16 May 2016

Abstract

In this paper the duality correspondence between fermion-antifermion and difermion interaction channels is established in two (2+1)-dimensional Gross-Neveu–type models with a fermion number chemical potential μ and a chiral chemical potential μ5. The role and influence of this property on the phase structure of the models are investigated. In particular, it is shown that the chemical potential μ5 promotes the appearance of dynamical chiral symmetry breaking, whereas the chemical potential μ contributes to the emergence of superconductivity.

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  • Received 4 March 2016

DOI:https://doi.org/10.1103/PhysRevD.93.105022

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

D. Ebert1, T. G. Khunjua2, K. G. Klimenko3, and V. C. Zhukovsky2

  • 1Institute of Physics, Humboldt-University Berlin, 12489 Berlin, Germany
  • 2Faculty of Physics, Moscow State University, 119991 Moscow, Russia
  • 3State Research Center of Russian Federation–Institute for High Energy Physics, NRC “Kurchatov Institute,” 142281 Protvino, Moscow Region, Russia

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Vol. 93, Iss. 10 — 15 May 2016

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