Quantum Processes as Thermodynamic Resources: The Role of Non-Markovianity

Autor(es)

Zambon, Guilherme ; Adesso, Gerardo

• Tipo de documento: Artigo Científico
• Fonte: Physical Review Letters; v. 134, n. 20, p. 9-pg., 2025-05-20.

Resumo

Quantum thermodynamics studies how quantum systems and operations may be exploited as sources of work to perform useful thermodynamic tasks. In real-world conditions, the evolution of open quantum systems typically displays memory effects, resulting in a non-Markovian dynamics. The associated information backflow has been observed to provide advantage in certain thermodynamic tasks. However, a general operational connection between non-Markovianity and thermodynamics in the quantum regime has remained elusive. Here, we analyze the role of non-Markovianity in the central task of extracting work via thermal operations from general multitime quantum processes, as described by process tensors. By defining a hierarchy of four classes of extraction protocols, expressed as quantum combs, we reveal three different physical mechanisms (work investment, multitime correlations, and system-environment correlations) through which non-Markovianity increases the work distillable from the process. The advantages arising from these mechanisms are linked precisely to a quantifier of the non-Markovianity of the process. These results show in very general terms how non-Markovianity of any given quantum process is a fundamental resource that unlocks an enhanced performance in thermodynamics. (AU)

• Processo FAPESP: 22/00993-9 - Explorando processos quânticos não-Markovianos dentro do formalismo do tensor de processo
• Beneficiário: Guilherme Clarck Zambon
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 23/04625-7 - Desenvolvendo uma teoria de recurso para processos multi temporais termodinâmicos quânticos
• Beneficiário: Guilherme Clarck Zambon
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado Direto