Nonequilibrium Steady State in a Quantum System: One-dimensional Transverse Ising Model with Energy Current

Details Nonequilibrium Steady State in a Quantum System: One-dimensional Transverse Ising Model with Energy Current Nonequilibrium Steady State in a Quantum System: One-dimensional Transverse Ising Model with Energy Current

1996-12-04

arxiv.org/abs/cond-mat/9612047v1

Phys. Rev. Lett. 78, 167 (1997)

Physics

Condensed Matter

Statistical Mechanics

4 pages, RevTeX, 2 PostScript figures, to appear in Phys.Rev.Lett

Scientific paper

10.1103/PhysRevLett.78.167

We study the nonequilibrium steady states of an Ising chain in a transverse field, h, by investigating the effect of a field, lambda, which drives the current of energy. The zero-temperature, h-lambda phase diagram is determined exactly and it is found that the energy current appears continuously above a threshold, lambda > lambda_c(h). The long-range magnetic order (present for h

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