| Full text | |
| Author(s): |
Zambon, Guilherme
;
Adesso, Gerardo
Total Authors: 2
|
| Document type: | Journal article |
| Source: | Physical Review Letters; v. 134, n. 20, p. 9-pg., 2025-05-20. |
| Abstract | |
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) | |
| FAPESP's process: | 22/00993-9 - Exploring non-Markovian quantum processes within the process tensor framework |
| Grantee: | Guilherme Clarck Zambon |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
| FAPESP's process: | 23/04625-7 - Developing a resource theory for multitime thermodynamic quantum processes |
| Grantee: | Guilherme Clarck Zambon |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate (Direct) |