Quantum corrections of work statistics in closed quantum systems.

  title={Quantum corrections of work statistics in closed quantum systems.},
  author={Zhaoyu Fei and Haitao Quan and Fei Liu},
  journal={Physical review. E},
  volume={98 1-1},
We investigate quantum corrections to the classical work characteristic function (CF) as a semiclassical approximation to the full quantum work CF. In addition to explicitly establishing the quantum-classical correspondence of the Feynman-Kac formula, we find that these quantum corrections must be in even powers of ℏ. Exact formulas of the lowest corrections (ℏ^{2}) are proposed, and their physical origins are clarified. We calculate the work CFs for a forced harmonic oscillator and a forced… Expand
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