Author:
de Oliveira Junior A.,de Oliveira Marcos César
Abstract
AbstractAt the heart of quantum thermodynamics lies a fundamental question about what is genuine “quantum” in quantum heat engines and how to seek this quantumness, so that thermodynamical tasks could be performed more efficiently compared with classical protocols. Here, using the concept of P-representability, we define a function called classicality, which quantifies the degree of non-classicality of bosonic modes. This function allows us to explore the role of non-classicality in quantum heat engines and design optimal protocols for work extraction. For two specific cycles, a quantum Otto and a generalised one, we show that non-classicality is a fundamental resource for performing thermodynamic tasks more efficiently.
Funder
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Fundacja na rzecz Nauki Polskiej
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Publisher
Springer Science and Business Media LLC
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