Finite-size scaling analysis in the two-photon Dicke model
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.97.053821
Abstract: The Hamiltonian of the two-photon Dicke model is diagonalized for the normal phase and super-radiant phase beyond the mean-field method respectively, giving the critical coupling strength. Besides a spectral collapse, the super-radiant phase transition is… read more here.
Keywords: two photon; dicke model; finite size; photon dicke ... See more keywords
Effect of system energy on quantum signatures of chaos in the two-photon Dicke model.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review. E"
DOI: 10.1103/physreve.100.022207
Abstract: We have studied entanglement entropy and Husimi Q distribution as a tool to explore chaos in the quantum two-photon Dicke model. With the increase of the energy of a system, the linear entanglement entropy of… read more here.
Keywords: system; two photon; dicke model; photon dicke ... See more keywords
Stark-induced tunable phase transition in the two-photon Dicke-Stark model
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review A"
DOI: 10.1103/vqnf-zd5w
Abstract: We theoretically investigate the superradiant phase transition (SPT) in the two-photon Dicke-Stark model, which incorporates both Rabi and Stark coupling. By introducing a Stark coupling term, we significantly reduce the critical Rabi coupling strength required… read more here.
Keywords: phase transition; stark; dicke stark; photon dicke ... See more keywords