Title: Cooperative efficiency boost for quantum heat engines

Abstract

The power and efficiency of many-body heat engines can be boosted by performing cooperative nonadiabatic operations in contrast to the commonly used adiabatic implementations. Here the key property relies on the fact that nonadiabaticity is required in order to allow for cooperative effects that can use the thermodynamic resources only present in the collective nonpassive 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.

Authors:

Gelbwaser-Klimovsky, David; Kopylov, Wassilij; Schaller, Gernot

Publication Date:

Fri Feb 01 00:00:00 EST 2019

Research Org.:

Energy Frontier Research Centers (EFRC) (United States). Center for Excitonics (CE); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Sponsoring Org.:

USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:

1566678

DOE Contract Number:  

SC0001088

Resource Type:

Journal Article

Journal Name:

Physical Review A

Additional Journal Information:

Journal Volume: 99; Journal Issue: 2; Journal ID: ISSN 2469-9926

Publisher:

American Physical Society (APS)

Country of Publication:

United States

Language:

English

Subject:

solar (photovoltaic), solid state lighting, photosynthesis (natural and artificial), charge transport, optics, synthesis (novel materials), synthesis (self-assembly), synthesis (scalable processing)