Cooperative efficiency boost for quantum heat engines
Quantum Physics
2019-03-04 v2
Abstract
The power and efficiency of many-body heat engines can be boosted by performing cooperative non-adiabatic operations in contrast to the commonly used adiabatic implementations. Here, the key property relies on the fact that non-adiabaticity is required in order to allow for cooperative effects, that can use the thermodynamic resources only present in the collective non-passive state of a many-body system. In particular, we consider the efficiency of an Otto cycle, which increases with the number of copies used and reaches a many-body bound, which we discuss analytically.
Keywords
Cite
@article{arxiv.1809.02564,
title = {Cooperative efficiency boost for quantum heat engines},
author = {David Gelbwaser-Klimovsky and Wassilij Kopylov and Gernot Schaller},
journal= {arXiv preprint arXiv:1809.02564},
year = {2019}
}