19 citations · 96 across the 21 of their papers we have counts for
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Ground state of the gauge invariant Dicke model: condensation of the photons in non-classical states
N. Q. San, O. D. Skoromnik, A. P. Ulyanenkov +2
We investigate the ground state of two physically motivated modifications of the Dicke model. The first modification corresponds to particles whose phase space contains only two st…
Eigenstates of two-level systems in a single-mode quantum field: from quantum Rabi model to -atom Dicke model
A. U. Leonau, N. Q. San, A. P. Ulyanenkov +2
In the present paper we show that the Hamiltonian describing the resonant interaction of two-level systems with a single-mode electromagnetic quantum field in the Coulomb gauge…
Exact solution for the quantum Rabi model with the term
I. D. Feranchuk, N. Q. San, A. U. Leonau +1
Quantum Rabi model (QRM) is widely used for the analysis of the radiation-matter interaction at the fundamental level in cavity quantum electrodynamics. Typically the QRM Hamiltoni…
Analytic approximation for eigenvalues of a class of symmetric Hamiltonians
O. D. Skoromnik, I. D. Feranchuk
An analytical approximation for the eigenvalues of symmetric Hamiltonian , is developed via simple basis se…
Spontaneous emission in a quantum system driven by the resonant field beyond the rotating wave approximation
I. D. Feranchuk, A. U. Leonau, M. M. Eskandari
Quasi-stationary states of the quantum system in the driving resonant field are considered without rotating wave approximation. Conditions under which the spontaneous emission coul…
Physical background for parameters of the quantum Rabi model
I. D. Feranchuk, A. V. Leonov, O. D. Skoromnik
We investigate the applicability of the two major approximations which are most commonly employed in the study of the quantum Rabi model, namely the description of a resonant cavit…