Evolution of Propagating Coherent Pulses Driving a Single Superconducting Artificial Atom
A. V. Vasenin, Sh. V. Kadyrmetov, A. N. Bolgar, A. Yu. Dmitriev, O. V. Astafiev
DOI 10.1103/PhysRevLett.133.073602 · Physical Review Letters
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Abstract
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.
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