A photonic quantum engine driven by superradiance
DC Field | Value | Language |
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dc.contributor.author | Kim, Jinuk | - |
dc.contributor.author | Oh, Seung-hoon | - |
dc.contributor.author | Yang, Daeho | - |
dc.contributor.author | Kim, Junki | - |
dc.contributor.author | Lee, Moonjoo | - |
dc.contributor.author | An, Kyungwon | - |
dc.date.accessioned | 2023-03-27T06:40:55Z | - |
dc.date.available | 2023-03-27T06:40:55Z | - |
dc.date.created | 2023-03-27 | - |
dc.date.issued | 2022-10 | - |
dc.identifier.issn | 1749-4885 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/87283 | - |
dc.description.abstract | A superradiant photonic engine is developed by using a Ba-138 atomic beam and a high-finesse optical cavity. The mirrors of a Fabry-Perot cavity act as the piston of an engine. The achieved engine temperature and efficiency are 1.5 x 10(5) K and 98%, respectively. Performance of nano- and microscale heat engines can be improved with the help of quantum-mechanical phenomena. Recently, heat reservoirs with quantum coherence have been proposed to enhance engine performance beyond the Carnot limit even with a single reservoir. However, no physical realizations have been achieved so far. Here we report the first proof-of-principle experimental demonstration of a photonic quantum engine driven by superradiance employing a single heat reservoir composed of atoms and photonic vacuum. Reservoir atoms prepared in a quantum coherent superposition state underwent superradiance as they traversed the cavity. This led to about 40-fold increase in the effective engine temperature, resulting in near-unity engine efficiency. Moreover, the observed engine output power grew quadratically with respect to the atomic injection rate. Our work can be utilized in quantum-mechanical heat transfer as well as in boosting engine powers, opening a pathway to the development of photomechanical devices that run on quantum coherence embedded in heat baths. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | NATURE PORTFOLIO | - |
dc.relation.isPartOf | NATURE PHOTONICS | - |
dc.title | A photonic quantum engine driven by superradiance | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000828422200001 | - |
dc.identifier.doi | 10.1038/s41566-022-01039-2 | - |
dc.identifier.bibliographicCitation | NATURE PHOTONICS, v.16, no.10, pp.707 - + | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85134675940 | - |
dc.citation.endPage | + | - |
dc.citation.startPage | 707 | - |
dc.citation.title | NATURE PHOTONICS | - |
dc.citation.volume | 16 | - |
dc.citation.number | 10 | - |
dc.contributor.affiliatedAuthor | Yang, Daeho | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | HEAT ENGINE | - |
dc.subject.keywordPlus | POWER | - |
dc.subject.keywordPlus | THERMALIZATION | - |
dc.relation.journalResearchArea | Optics | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Optics | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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