期刊
QUANTUM SCIENCE AND TECHNOLOGY
卷 3, 期 3, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/2058-9565/aac40d
关键词
quantum thermodynamics; rotor heat engine; autonomous heat engine
资金
- Singapore Ministry of Education through the Academic Research Fund Tier 3 under the Research Centres of Excellence programme [MOE2012-T3-1-009]
- National Research Foundation, Prime Ministers Office, Singapore, through the Competitive Research Programme under the Research Centres of Excellence programme [NRF-CRP12-2013-03]
- Swiss SNF
- NCCR Quantum Science and Technology
Pistons are elementary components of a wide variety of thermal engines, allowing to convert input fuel into rotational motion. Here, we propose a single-piston engine where the rotational degree of freedom is effectively realized by the flux of a Josephson loop-a quantum rotor-while the working volume corresponds to the effective length of a superconducting resonator. Our autonomous design implements a Carnot cycle, relies solely on standard thermal baths and can be implemented with circuit quantum electrodynamics. We demonstrate how the engine is able to extract a net positive work via its built-in synchronicity using a filter cavity as an effective valve, eliminating the need for external control.
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