Evolution of Propagating Coherent Pulses Driving a Single Superconducting Artificial Atom

An electromagnetic wave propagating through a waveguide with a strongly coupled two-level superconducting artificial atom exhibits an evolving superposition with the atom. The Rabi oscillations in the atom result from a single excitation-relaxation, corresponding to photon absorption and stimulated...

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Bibliographic Details
Published inPhysical review letters Vol. 133; no. 7; p. 073602
Main Authors Vasenin, A V, Kadyrmetov, Sh V, Bolgar, A N, Dmitriev, A Yu, Astafiev, O V
Format Journal Article
LanguageEnglish
Published United States 16.08.2024
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Summary:An electromagnetic wave propagating through a waveguide with a strongly coupled two-level superconducting artificial atom exhibits an evolving superposition with the atom. The Rabi oscillations in the atom result from a single excitation-relaxation, corresponding to photon absorption and stimulated emission from and to the field. In this study, we experimentally investigated the time-dependent behavior of the field transmitted through a waveguide with a strongly coupled transmon. The scattered fields agree well with the predictions of the input-output theory. We demonstrate that the time evolution of the propagating fields, because of the interaction, encapsulates all information about the atom. Furthermore, we deduced the dynamics of the incoherent radiation component from the first-order correlation function of the measured field.
ISSN:1079-7114
DOI:10.1103/PhysRevLett.133.073602