Chiral symmetry restoration in (2+1)-dimensional QED with a Maxwell-Chern-Simons term at finite temperature

Article

关键词: HIGH-TC SUPERCONDUCTORS;    LARGE-N LIMIT;    GAUGE-THEORY;    HEISENBERG;    GENERATION;    MODEL;    MASS;   

DOI  :  10.1103/PhysRevB.74.144404

来源: SCIE

【 摘 要 】

We study the role played by a Chern-Simons contribution to the action in the QED(3) formulation of a two-dimensional Heisenberg model of quantum spin systems with a strictly fixed site occupation at finite temperature. We show how this contribution affects the screening of the potential that acts between spinons and contributes to the restoration of chiral symmetry in the spinon sector. The constant that characterizes the Chern-Simons term can be related to the critical temperature T-c above which the dynamical mass goes to zero.

【 授权许可】

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