Higgs-Mediated Optical Amplification in a Nonequilibrium Superconductor

We propose a novel nonequilibrium phenomenon, through which a prompt quench from a metal to a transient superconducting state can induce large oscillations of the order parameter amplitude. We argue that this oscillating mode acts as a source of parametric amplification of the incident radiation. We...

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Autores principales:	Michele Buzzi, Gregor Jotzu, Andrea Cavalleri, J. Ignacio Cirac, Eugene A. Demler, Bertrand I. Halperin, Mikhail D. Lukin, Tao Shi, Yao Wang, Daniel Podolsky
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/db98a124faf34025a73fcb181f4e19c2
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spelling	oai:doaj.org-article:db98a124faf34025a73fcb181f4e19c22021-12-02T16:27:27ZHiggs-Mediated Optical Amplification in a Nonequilibrium Superconductor10.1103/PhysRevX.11.0110552160-3308https://doaj.org/article/db98a124faf34025a73fcb181f4e19c22021-03-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.11.011055http://doi.org/10.1103/PhysRevX.11.011055https://doaj.org/toc/2160-3308We propose a novel nonequilibrium phenomenon, through which a prompt quench from a metal to a transient superconducting state can induce large oscillations of the order parameter amplitude. We argue that this oscillating mode acts as a source of parametric amplification of the incident radiation. We report experimental results on optically driven K_{3}C_{60} that are consistent with these predictions. The effect is found to disappear when the onset of the excitation becomes slower than the Higgs-mode period, consistent with the theory proposed here. These results open new possibilities for the use of collective modes in many-body systems to induce nonlinear optical effects.Michele BuzziGregor JotzuAndrea CavalleriJ. Ignacio CiracEugene A. DemlerBertrand I. HalperinMikhail D. LukinTao ShiYao WangDaniel PodolskyAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 11, Iss 1, p 011055 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Michele Buzzi Gregor Jotzu Andrea Cavalleri J. Ignacio Cirac Eugene A. Demler Bertrand I. Halperin Mikhail D. Lukin Tao Shi Yao Wang Daniel Podolsky Higgs-Mediated Optical Amplification in a Nonequilibrium Superconductor
description	We propose a novel nonequilibrium phenomenon, through which a prompt quench from a metal to a transient superconducting state can induce large oscillations of the order parameter amplitude. We argue that this oscillating mode acts as a source of parametric amplification of the incident radiation. We report experimental results on optically driven K_{3}C_{60} that are consistent with these predictions. The effect is found to disappear when the onset of the excitation becomes slower than the Higgs-mode period, consistent with the theory proposed here. These results open new possibilities for the use of collective modes in many-body systems to induce nonlinear optical effects.
format	article
author	Michele Buzzi Gregor Jotzu Andrea Cavalleri J. Ignacio Cirac Eugene A. Demler Bertrand I. Halperin Mikhail D. Lukin Tao Shi Yao Wang Daniel Podolsky
author_facet	Michele Buzzi Gregor Jotzu Andrea Cavalleri J. Ignacio Cirac Eugene A. Demler Bertrand I. Halperin Mikhail D. Lukin Tao Shi Yao Wang Daniel Podolsky
author_sort	Michele Buzzi
title	Higgs-Mediated Optical Amplification in a Nonequilibrium Superconductor
title_short	Higgs-Mediated Optical Amplification in a Nonequilibrium Superconductor
title_full	Higgs-Mediated Optical Amplification in a Nonequilibrium Superconductor
title_fullStr	Higgs-Mediated Optical Amplification in a Nonequilibrium Superconductor
title_full_unstemmed	Higgs-Mediated Optical Amplification in a Nonequilibrium Superconductor
title_sort	higgs-mediated optical amplification in a nonequilibrium superconductor
publisher	American Physical Society
publishDate	2021
url	https://doaj.org/article/db98a124faf34025a73fcb181f4e19c2
work_keys_str_mv	AT michelebuzzi higgsmediatedopticalamplificationinanonequilibriumsuperconductor AT gregorjotzu higgsmediatedopticalamplificationinanonequilibriumsuperconductor AT andreacavalleri higgsmediatedopticalamplificationinanonequilibriumsuperconductor AT jignaciocirac higgsmediatedopticalamplificationinanonequilibriumsuperconductor AT eugeneademler higgsmediatedopticalamplificationinanonequilibriumsuperconductor AT bertrandihalperin higgsmediatedopticalamplificationinanonequilibriumsuperconductor AT mikhaildlukin higgsmediatedopticalamplificationinanonequilibriumsuperconductor AT taoshi higgsmediatedopticalamplificationinanonequilibriumsuperconductor AT yaowang higgsmediatedopticalamplificationinanonequilibriumsuperconductor AT danielpodolsky higgsmediatedopticalamplificationinanonequilibriumsuperconductor
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Higgs-Mediated Optical Amplification in a Nonequilibrium Superconductor

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