Extracting quantum work statistics and fluctuation theorems by single-qubit interferometry.

@article{Dorner2013ExtractingQW,
  title={Extracting quantum work statistics and fluctuation theorems by single-qubit interferometry.},
  author={Ross Dorner and S. R. Clark and Libby Heaney and Rosario Fazio and John C Goold and Vlatko Vedral},
  journal={Physical review letters},
  year={2013},
  volume={110 23},
  pages={230601}
}
We propose an experimental scheme to verify the quantum nonequilibrium fluctuation relations using current technology. Specifically, we show that the characteristic function of the work distribution for a nonequilibrium quench of a general quantum system can be extracted by Ramsey interferometry of a single probe qubit. Our scheme paves the way for the full characterization of nonequilibrium processes in a variety of quantum systems, ranging from single particles to many-body atomic systems and… CONTINUE READING
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