3 papers
quant-ph2025
Energy spectrum and quantum phase transition of the coupled single spin and an infinitely coordinated Ising chain
S. S. Seidov, N. G. Pugach, A. S. Sidorenko
We consider a spin model, composed of a single spin, connected to an infinitely coordinated Ising chain. Theoretical models of this type arise in various fields of theoretical phys…
quant-ph2021
Quantum beats of a magnetic fluxon in a two-cell SQUID
I. N. Moskalenko, I. S. Besedin, S. S. Seidov +2
We report a detailed theoretical study of a coherent macroscopic quantum-mechanical phenomenon - quantum beats of a single magnetic fluxon trapped in a two-cell SQUID of high kinet…
cond-mat.stat-mech2020
Spontaneous symmetry breaking and Husimi Q-functions in extended Dicke model
S. S. Seidov, S. I. Mukhin
We study the emergence of a parity breaking coherent photonic state of a photon mode coupled to finite array of two-level systems, represented by pseudospins 1/2. The pseudospin-ph…