Friday, February 3, 2012

1202.0239 (Denis Bernard et al.)

Heat flow in non-equilibrium conformal field theory    [PDF]

Denis Bernard, Benjamin Doyon
We study the heat current and its fluctuations in quantum gapless 1d systems
far from equilibrium modeled by conformal field theory, where two separated
halves are prepared at distinct temperatures and glued together at a point
contact. We prove that these systems converge towards steady states, and give a
general description of such non-equilibrium steady states in terms of quantum
field theory data. We compute the full counting statistics of energy transfer
through the contact. These are universal and satisfy fluctuation relations. We
provide a simple representation of these quantum fluctuations in terms of
classical Poisson processes whose intensities are proportional to Boltzmann
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