Abstract
Yu.E. Lozovik, D.S. Shapiro, A.A. Zhukov, and W.V. Pogosov Institute of Spectroscopy, Russian Academy of Sciences,142190 Moscow region, Troitsk, Russia Center for Fundamental and Applied Research, N.L. Dukhov All-Russia Research Institute of Automatics, 127055 Moscow, Russia V.A.Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences,125009 Moscow, Russia National Research Nuclear University (MEPhI),115409 Moscow, Russia Institute for Theoretical and Applied Electrodynamics, Russian Academy of Sciences,125412 Moscow, Russia
Highlights
A natural atom placed into a cavity with time-dependent parameters can be parametrically excited due to the interaction with the quantized photon mode
Superconducting circuits integrated with microwave resonators provide a unique platform for an observation of cavity quantum electrodynamical (QED) nonstationary phenomena which can hardly be studied in more traditional experiments
The most obvious mechanism is due to the absorbtion of Casimir photons. Another channel is due to the nonadiabatic modulation of atomic Lamb shift: virtual states of atom-photon coupled system are transformed into real states
Summary
A natural atom placed into a cavity with time-dependent parameters can be parametrically excited due to the interaction with the quantized photon mode. Superconducting circuits integrated with microwave resonators provide a unique platform for an observation of cavity quantum electrodynamical (QED) nonstationary phenomena which can hardly be studied in more traditional experiments. It is quite difficult to isolate the mechanism of atom excitation due to the dynamical Lamb effect from other channels.
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