publication . Preprint . Article . 2014

Heat Engine Driven by Purely Quantum Information

Jung Jun Park; Kang-Hwan Kim; Takahiro Sagawa; Sang Wook Kim;
  • Published: 30 Jan 2014
The key question of this paper is whether work can be extracted from a heat engine by using purely quantum mechanical information. If the answer is yes, what is its mathematical formula? First, by using a bipartite memory we show that the work extractable from a heat engine is bounded not only by the free energy change and the sum of the entropy change of an individual memory but also by the change of quantum mutual information contained inside the memory. We then find that the engine can be driven by purely quantum information, expressed as the so-called quantum discord, forming a part of the quantum mutual information. To confirm it, as a physical example we p...
ACM Computing Classification System: TheoryofComputation_GENERAL
free text keywords: Quantum Physics, General Physics and Astronomy, Theoretical physics, Coherent information, Physics, Quantum mutual information, Quantum statistical mechanics, Heat engine, Quantum information, Quantum discord, Quantum capacity, Joint quantum entropy
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