503 citations · 606 across the 6 of their papers we have counts for
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quant-ph2005★ 19 cited
Entanglement of a qubit coupled to a resonator in the adiabatic regime
G. Liberti, R. L. Zaffino, F. Piperno +1
We discuss the ground state entanglement of a bi-partite system, composed by a qubit strongly interacting with an oscillator mode, as a function of the coupling strenght, the trans…
cond-mat.stat-mech2005
Reply to "Comment on equivalence between quantum phase transition phenomena in radiation-matter and magnetic systems"
Giuseppe Liberti, Rosa Letizia Zaffino
A short Reply to the Comment of Brankov, Tonchev and Zagrebnov, quant-ph/0506207, is given.
cond-mat.stat-mech2005★ 18 cited
Thermodynamic properties of the Dicke model in the strong-coupling regime
Giuseppe Liberti, Rosa Letizia Zaffino
We discuss the problem of a N two-level systems interacting with a single radiation mode in the strong-coupling regime. The thermodynamic properties of Dicke model are analyzed dev…