English

Fluctuation relations without micro-reversibility for two-terminal conductors

Mesoscale and Nanoscale Physics 2015-05-13 v2 Statistical Mechanics

Abstract

In linear transport, the fluctuation-dissipation theorem relates equilibrium current correlations to the linear conductance coefficient. Theory and experiment have shown that in small electrical conductors the non-linear I-V-characteristic of two-terminal conductor exhibits terms which are asymmetric in magnetic field and thus micro-reversibility is manifestly broken. We discuss a non-equilibrium fluctuation dissipation theorem which is not based on micro-reversibility. It connects the antisymmetric nonlinear conductance with the third cumulant of equilibrium current fluctuations and a noise term that is proportional to temperature, magnetic field and voltage.

Keywords

Cite

@article{arxiv.0903.1431,
  title  = {Fluctuation relations without micro-reversibility for two-terminal conductors},
  author = {Heidi Forster and Markus Buttiker},
  journal= {arXiv preprint arXiv:0903.1431},
  year   = {2015}
}

Comments

6 pages, 2 figures, corrected typos

R2 v1 2026-06-21T12:19:35.331Z