Correlation-boosted quantum engine: A proof-of-principle demonstration

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Abstract
Employing currently available quantum technology, we design and implement a nonclassically correlated SWAP heat engine that allows to achieve an efficiency above the standard Carnot limit. Such an engine also boosts the amount of extractable work, in a wider parameter window, with respect to engine's cycle in the absence of initial quantum correlations in the working substance. The boosted efficiency arises from a trade-off between the entropy production and the consumption of quantum correlations during the full thermodynamic cycle. We derive a generalized second-law limit for the correlated cycle and implement a proof-of-principle demonstration of the engine efficiency enhancement by effectively tailoring the thermal engine on a cloud quantum processor.
Funding Information
  • Utdannings- og forskningsdepartementet (2021-10436/CI 71331)
  • Universidad Autónoma de Occidente
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
  • Fundação de Amparo à Pesquisa do Estado de São Paulo
  • Ministry of Science and Technology of the People's Republic of China (G2021016021L)
  • Universidade de São Paulo
  • Minciencias (270-2021/CI 71295)

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