Will Entanglement Violate Thermodynamics?

Thermodynamic Work Gain from Entanglement

Authors:

1. Ken Funo (a)

2. Yu Watanabe (b)

3. Masahito Ueda (a)

Institutions:

a. Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan

b. Yukawa Institute for Theoretical Physics, Kyoto University, Kitashirakawa Oiwake-Cho, 606-8502 Kyoto, Japan

Abstract:

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.

Paper link.

Confirmation or refutation ought to be coming soon.  It'd be big if confirmed.  Somehow I have my doubts.