Entropy production and thermodynamic power of the squeezed thermal reservoir

Manzano,Gonzalo;Galve,Fernando;Zambrini,Roberta;Parrondo,Juan M. R.
Physical Review E 93, 052120 (2016)

We analyze the entropy production and the maximal extractable work from a squeezed thermal reservoir. The nonequilibrium quantum nature of the reservoir induces an entropy transfer with a coherent contribution while modifying its thermal part, allowing work extraction from a single reservoir, as well as great improvements in power and efficiency for quantum heat engines. Introducing a modified quantum Otto cycle, our approach fully characterizes operational regimes forbidden in the standard case, such as refrigeration and work extraction at the same time, accompanied by efficiencies equal to unity.

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