Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 6, Issue 17, Pages 3477-3482Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.5b01404
Keywords
-
Categories
Funding
- Center for Excitonics, an Energy Frontier Research Center - U.S. Department of Energy [DE-SC0001088]
- Division Of Physics
- Direct For Mathematical & Physical Scien [1205923] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1205635] Funding Source: National Science Foundation
Ask authors/readers for more resources
Energy conversion of heat into work at the quantum level is modeled by quantum heat machines (QHMs) generally assumed to operate at weak coupling to the baths. This supposition is grounded in the separability principle between systems and allows the derivation of the evolution equation. In the weak coupling regime, the machine's output is limited by the coupling strength, restricting their application. Seeking to overcome this limitation, we analyze QHMs in the virtually unexplored strong coupling regime here, where separability, as well as other standard thermodynamic assumptions, may no longer hold. We show that strongly coupled QHMs may be as efficient as their weakly coupled counterparts. In addition, we find a novel turnover behavior where their output saturates and disappears in the limit of ultrastrong coupling.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available