Ken Funo, Yu Watanabe, Masahito Ueda
We show that entangled states can be used to extract thermodynamic work beyond classical correlation via feedback control based on measurement on part of a composite system. The work gain is determined by the amount of correlation that is transfered from between the subsystems to between the system and the memory. Furthermore, entangled states require less measurement cost because we can perform feedback control without decreasing the entropy of the system, and hence the memory does not need entropy production to compensate for the feedback gain.
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http://arxiv.org/abs/1207.6872
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