Numerically exact full counting statistics of the energy current in the Kondo regime
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Numerically exact full counting statistics of the energy current in the Kondo regime

  • Author(s): Ridley, Michael
  • Galperin, Michael
  • Gul, Emanuel
  • Cohen, Guy
  • et al.
Abstract

We use the inchworm Quantum Monte Carlo method to investigate the full counting statistics of particle and energy currents in a strongly correlated quantum dot. Our method is used to extract the heat fluctuations and entropy production of a quantum thermoelectric device, as well as cumulants of the particle and energy currents. The energy--particle current cross correlations reveal information on the preparation of the system and the interplay of thermal and electric currents. We furthermore demonstrate the signature of a crossover from Coulomb blockade to Kondo physics in the energy current fluctuations, and show how the conventional master equation approach to full counting statistics systematically fails to capture this crossover.

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