Magnetic Instability in a Parity Invariant 2D Fermion System

Details Magnetic Instability in a Parity Invariant 2D Fermion System Magnetic Instability in a Parity Invariant 2D Fermion System

2000-07-05

arxiv.org/abs/hep-th/0007034v1

Int.J.Mod.Phys. B14 (2000) 1441

Physics

High Energy Physics

High Energy Physics - Theory

7 pages, RevTex

Scientific paper

10.1142/S0217979200001345

We consider the parity invariant (2+1)-dimensional QED where the matter is represented as a mixture of fermions with opposite spins. It is argued that the perturbative ground state of the system is unstable with respect to the formation of magnetized ground state. Carrying out the finite temperature analysis we show that the magnetic instability disappears in the high temperature regime.

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