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Peres Lattices and chaos in the Dicke model
Miguel Angel Bastarrachea-Magnani, Jorge G. Hirsch
Peres lattices are employed as a visual method to identify the presence of chaos in different regions of the energy spectra in the Dicke model. The coexistence of regular and chaot…
Fidelity, susceptibility and critical exponents in the Dicke model
M. A. Bastarrachea-Magnani, O. Castaños, E. Nahmad-Achar +2
We calculate numerically the fidelity and its susceptibility for the ground state of the Dicke model. A minimum in the fidelity identifies the critical value of the interaction whe…
Efficient basis for the Dicke Model II: wave function convergence and excited states
Jorge G. Hirsch, Miguel A. Bastarrachea-Magnani
An extended bosonic coherent basis has been shown by Chen et al to provide numerically exact solutions of the finite-size Dicke model. The advantages in employing this basis, as co…
Efficient basis for the Dicke Model I: theory and convergence in energy
Miguel Angel Bastarrachea-Magnani, Jorge G. Hirsch
An extended bosonic coherent basis has been shown by Chen to provide numerically exact solutions of the finite-size Dicke model. The advantages in employing this basis, as compared…