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Article: Enhanced Dynamic Casimir Effect in Temporally and Spatially Modulated Josephson Transmission Line

TitleEnhanced Dynamic Casimir Effect in Temporally and Spatially Modulated Josephson Transmission Line
Authors
Keywordssymmetry
dynamic Casimir effect
Josephson metamaterials
Issue Date2019
Citation
Laser and Photonics Reviews, 2019, v. 13, n. 10, article no. 1900164 How to Cite?
Abstract© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Real photon pairs can be created in a dynamic cavity with an oscillating boundary or temporally modulated refractive index of the constituent medium. This effect is called dynamic Casimir effect (DCE), which represents one of the most amazing predictions of quantum field theory. The DCE has been experimentally observed in Josephson metamaterials embedded in a microwave cavity. However, the efficiency of the observed DCE is extremely weak, entailing a complex external signal enhancement process to detect the signal. Here, it is shown that the DCE can be drastically enhanced in a dynamic 1D cavity consisting of a superconducting quantum interference device (SQUID)-based Josephson transmission line with both temporal and spatial modulation on the effective inductance profile through flux-biasing. Such a system can resonantly generate photons at driving frequencies equal to even or odd integer times of that of the fundamental cavity mode governed by the symmetry of the spatial modulation. Interesting spectral and scaling behaviors for photons excited at the band edge are further observed. The discovery introduces a new degree of freedom—spatial modulation—to enhance the efficiency of DCE.
Persistent Identifierhttp://hdl.handle.net/10722/295149
ISSN
2020 Impact Factor: 13.138
2015 SCImago Journal Rankings: 4.690
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorMa, Shaojie-
dc.contributor.authorMiao, Haixing-
dc.contributor.authorXiang, Yuanjiang-
dc.contributor.authorZhang, Shuang-
dc.date.accessioned2021-01-05T04:59:10Z-
dc.date.available2021-01-05T04:59:10Z-
dc.date.issued2019-
dc.identifier.citationLaser and Photonics Reviews, 2019, v. 13, n. 10, article no. 1900164-
dc.identifier.issn1863-8880-
dc.identifier.urihttp://hdl.handle.net/10722/295149-
dc.description.abstract© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Real photon pairs can be created in a dynamic cavity with an oscillating boundary or temporally modulated refractive index of the constituent medium. This effect is called dynamic Casimir effect (DCE), which represents one of the most amazing predictions of quantum field theory. The DCE has been experimentally observed in Josephson metamaterials embedded in a microwave cavity. However, the efficiency of the observed DCE is extremely weak, entailing a complex external signal enhancement process to detect the signal. Here, it is shown that the DCE can be drastically enhanced in a dynamic 1D cavity consisting of a superconducting quantum interference device (SQUID)-based Josephson transmission line with both temporal and spatial modulation on the effective inductance profile through flux-biasing. Such a system can resonantly generate photons at driving frequencies equal to even or odd integer times of that of the fundamental cavity mode governed by the symmetry of the spatial modulation. Interesting spectral and scaling behaviors for photons excited at the band edge are further observed. The discovery introduces a new degree of freedom—spatial modulation—to enhance the efficiency of DCE.-
dc.languageeng-
dc.relation.ispartofLaser and Photonics Reviews-
dc.subjectsymmetry-
dc.subjectdynamic Casimir effect-
dc.subjectJosephson metamaterials-
dc.titleEnhanced Dynamic Casimir Effect in Temporally and Spatially Modulated Josephson Transmission Line-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/lpor.201900164-
dc.identifier.scopuseid_2-s2.0-85073626611-
dc.identifier.volume13-
dc.identifier.issue10-
dc.identifier.spagearticle no. 1900164-
dc.identifier.epagearticle no. 1900164-
dc.identifier.eissn1863-8899-
dc.identifier.isiWOS:000486702500001-
dc.identifier.issnl1863-8880-

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