2026-06-27T13:59:04Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/245672023-08-27T00:47:45Zcom_20.500.14352_14col_20.500.14352_15

Manzano Paule, Gonzalo Galve, Fernando Zambrini, Roberta Rodríguez Parrondo, Juan Manuel 2023-06-18T06:54:47Z 2023-06-18T06:54:47Z 2016-05-10 2470-0045 10.1103/PhysRevE.93.052120 https://hdl.handle.net/20.500.14352/24567 http://dx.doi.org/10.1103/PhysRevE.93.052120 http://journals.aps.org/ 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. eng open access Entropy production and thermodynamic power of the squeezed thermal reservoir journal article