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We give a short review of known exact inequalities that can be interpreted as 'energy–time' and 'frequency–time' uncertainty relations. In particular we discuss a precise form of signals minimizing… (More)

We study analytically and numerically the dynamics of the quantum non-stationary system composed of a two-level atom interacting with a single mode cavity field whose frequency is rapidly modulated… (More)

We address the issue of the detection and counting of photons. We assume an electromagnetic field enclosed in an ideal cavity, which together with the detector constitute a closed system, so no… (More)

We study numerically the dynamics of the Rabi Hamiltonian, which describes the interaction of a single cavity mode and a two-level atom without the rotating wave approximation. We analyze this system… (More)

We give a simplified form of Simon's separability criterion for two-mode Gaussian states, showing that for systems whose unitary evolution is governed by arbitrary time-dependent quadratic… (More)

We consider the problem of the creation of quanta of an electromagnetic field from the initial vacuum (or thermal) state in a closed high-Q cavity due to periodical variations of conductivity of a… (More)

We study a possibility of photon generation from vacuum in a cavity with an artificial effective time-dependent plasma mirror, which could be created by mean so fp eriodical short laser pulses,… (More)

Article history: We study the influence of the non-equidistancy of the frequency spectrum on the Dynamical Casimir effect in a rectangular cavity with a harmonically oscillating ideal wall. The… (More)

We study the influence of fluctuations in periodic motion of boundaries of an ideal three-dimensional cavity on the rate of photon generation from vacuum due to the nonstationary Casimir effect.

We study theoretically the nonstationary circuit QED system in which the artificial atom transition frequency, or the atom-cavity coupling, have a small periodic time modulation, prescribed… (More)