Dynamical simulation of current fluctuations in a dissipative two-state system

Details Dynamical simulation of current fluctuations in a dissipative two-state system Dynamical simulation of current fluctuations in a dissipative two-state system

1998-02-04

arxiv.org/abs/cond-mat/9802054v1

Phys. Rev. Lett. 80, 2657 (1998)

Physics

Condensed Matter

Statistical Mechanics

4 pages, 4 figures; to appear in Phys. Rev. Letters

Scientific paper

10.1103/PhysRevLett.80.2657

Current fluctuations in a dissipative two-state system have been studied using a novel quantum dynamics simulation method. After a transformation of the path integrals, the tunneling dynamics is computed by deterministic integration over the real-time paths under the influence of colored noise. The nature of the transition from coherent to incoherent dynamics at low temperatures is re-examined.

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