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quant-ph2016★ 19 cited
Identifying the order of a quantum phase transition by means of Wehrl entropy in phase-space
O. Castaños, M. Calixto, F. Pérez-Bernal +1
We propose a method to identify the order of a Quantum Phase Transition by using area measures of the ground state in phase space. We illustrate our proposal by analyzing the well…
quant-ph2014★ 58 cited
Husimi distribution and phase space analysis of Dicke model quantum phase transition
E. Romera, R. del Real, M. Calixto
The Husimi distribution is proposed for a phase space analysis of quantum phase transitions in the Dicke model of spin-boson interactions. We show that the inverse participation ra…
quant-ph2014★ 37 cited
Husimi distribution and phase-space analysis of a vibron-model quantum phase transition
M. Calixto, R. del Real, E. Romera
The Husimi distribution is proposed for a phase space analysis of quantum phase transitions in the two-dimensional vibron model for -size molecules. We show that the inve…