Collapse and Revival of an Artificial Atom Coupled to a Structured Photonic Reservoir

Quantum emitters in the presence of an electromagnetic reservoir with varying density of states, or structure, can undergo a rich set of dynamical behavior. In particular, the reservoir can be tailored to have a memory of past interactions with emitters, in contrast to memoryless Markovian dynamics...

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Autores principales:	Vinicius S. Ferreira, Jash Banker, Alp Sipahigil, Matthew H. Matheny, Andrew J. Keller, Eunjong Kim, Mohammad Mirhosseini, Oskar Painter
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/985b21b51e2744a99ddd91c99d687dd3
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spelling	oai:doaj.org-article:985b21b51e2744a99ddd91c99d687dd32021-12-02T15:46:11ZCollapse and Revival of an Artificial Atom Coupled to a Structured Photonic Reservoir10.1103/PhysRevX.11.0410432160-3308https://doaj.org/article/985b21b51e2744a99ddd91c99d687dd32021-12-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.11.041043http://doi.org/10.1103/PhysRevX.11.041043https://doaj.org/toc/2160-3308Quantum emitters in the presence of an electromagnetic reservoir with varying density of states, or structure, can undergo a rich set of dynamical behavior. In particular, the reservoir can be tailored to have a memory of past interactions with emitters, in contrast to memoryless Markovian dynamics of typical open systems. In this article, we investigate the non-Markovian dynamics of a superconducting qubit strongly coupled to a superconducting waveguide engineered to have both a sharp spectral variation in its transmission properties and a slowing of light by a factor of 650. Tuning the qubit into the spectral vicinity of the passband of this slow-light waveguide reservoir, we observe a 400-fold change in the emission rate of the qubit, along with oscillatory energy relaxation of the qubit resulting from the beating of bound and radiative dressed qubit-photon states. Furthermore, upon addition of a reflective boundary to one end of the waveguide, we observe revivals in the qubit population on a timescale 30 times longer than the inverse of the qubit’s emission rate, corresponding to the round-trip travel time of an emitted photon. By in situ tuning of the qubit-waveguide interaction strength, we also probe a crossover between Markovian and non-Markovian qubit emission dynamics in the presence of feedback from waveguide reflections. With this superconducting circuit platform, future studies of multiqubit interactions via highly structured reservoirs and the generation of multiphoton highly entangled states are possible.Vinicius S. FerreiraJash BankerAlp SipahigilMatthew H. MathenyAndrew J. KellerEunjong KimMohammad MirhosseiniOskar PainterAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 11, Iss 4, p 041043 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Vinicius S. Ferreira Jash Banker Alp Sipahigil Matthew H. Matheny Andrew J. Keller Eunjong Kim Mohammad Mirhosseini Oskar Painter Collapse and Revival of an Artificial Atom Coupled to a Structured Photonic Reservoir
description	Quantum emitters in the presence of an electromagnetic reservoir with varying density of states, or structure, can undergo a rich set of dynamical behavior. In particular, the reservoir can be tailored to have a memory of past interactions with emitters, in contrast to memoryless Markovian dynamics of typical open systems. In this article, we investigate the non-Markovian dynamics of a superconducting qubit strongly coupled to a superconducting waveguide engineered to have both a sharp spectral variation in its transmission properties and a slowing of light by a factor of 650. Tuning the qubit into the spectral vicinity of the passband of this slow-light waveguide reservoir, we observe a 400-fold change in the emission rate of the qubit, along with oscillatory energy relaxation of the qubit resulting from the beating of bound and radiative dressed qubit-photon states. Furthermore, upon addition of a reflective boundary to one end of the waveguide, we observe revivals in the qubit population on a timescale 30 times longer than the inverse of the qubit’s emission rate, corresponding to the round-trip travel time of an emitted photon. By in situ tuning of the qubit-waveguide interaction strength, we also probe a crossover between Markovian and non-Markovian qubit emission dynamics in the presence of feedback from waveguide reflections. With this superconducting circuit platform, future studies of multiqubit interactions via highly structured reservoirs and the generation of multiphoton highly entangled states are possible.
format	article
author	Vinicius S. Ferreira Jash Banker Alp Sipahigil Matthew H. Matheny Andrew J. Keller Eunjong Kim Mohammad Mirhosseini Oskar Painter
author_facet	Vinicius S. Ferreira Jash Banker Alp Sipahigil Matthew H. Matheny Andrew J. Keller Eunjong Kim Mohammad Mirhosseini Oskar Painter
author_sort	Vinicius S. Ferreira
title	Collapse and Revival of an Artificial Atom Coupled to a Structured Photonic Reservoir
title_short	Collapse and Revival of an Artificial Atom Coupled to a Structured Photonic Reservoir
title_full	Collapse and Revival of an Artificial Atom Coupled to a Structured Photonic Reservoir
title_fullStr	Collapse and Revival of an Artificial Atom Coupled to a Structured Photonic Reservoir
title_full_unstemmed	Collapse and Revival of an Artificial Atom Coupled to a Structured Photonic Reservoir
title_sort	collapse and revival of an artificial atom coupled to a structured photonic reservoir
publisher	American Physical Society
publishDate	2021
url	https://doaj.org/article/985b21b51e2744a99ddd91c99d687dd3
work_keys_str_mv	AT viniciussferreira collapseandrevivalofanartificialatomcoupledtoastructuredphotonicreservoir AT jashbanker collapseandrevivalofanartificialatomcoupledtoastructuredphotonicreservoir AT alpsipahigil collapseandrevivalofanartificialatomcoupledtoastructuredphotonicreservoir AT matthewhmatheny collapseandrevivalofanartificialatomcoupledtoastructuredphotonicreservoir AT andrewjkeller collapseandrevivalofanartificialatomcoupledtoastructuredphotonicreservoir AT eunjongkim collapseandrevivalofanartificialatomcoupledtoastructuredphotonicreservoir AT mohammadmirhosseini collapseandrevivalofanartificialatomcoupledtoastructuredphotonicreservoir AT oskarpainter collapseandrevivalofanartificialatomcoupledtoastructuredphotonicreservoir
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Collapse and Revival of an Artificial Atom Coupled to a Structured Photonic Reservoir

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