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quant-ph2016★ 40 cited
Generalized squeezing rotating-wave approximation to the isotropic and anisotropic Rabi model in the ultrastrong-coupling regime
Yu-Yu Zhang
Generalized squeezing rotating-wave approximation (GSRWA) is proposed by employing both the displacement and the squeezing transformations. A solvable Hamiltonian is reformulated i…
quant-ph2016★ 11 cited
Analytical solutions and genuine multipartite entanglement of the three-qubit Dicke model
Yu-Yu Zhang, Xiang-You Chen, Shu He +1
We present analytical solutions to three qubits and a single-mode cavity coupling system beyond the rotating-wave approximation (RWA). The zero-th order approximation gives correct…