Signatures of the superfluid-insulator phase transition in laser-driven dissipative nonlinear cavity arrays

Tomadin, A; Giovannetti, Vittorio; Fazio, Rosario; Gerace, D; Carusotto, I; Tureci H., E; Imamoglu, A.

doi:10.1103/PhysRevA.81.061801

We analyze the nonequilibrium dynamics of a gas of interacting photons in an array of coupled dissipative nonlinear cavities when driven by a pulsed external coherent field. Using a mean-field approach, we show that the response of the system is strongly sensitive to the underlying (equilibrium) quantum phase transition from a Mott insulator to a superfluid state at commensurate filling. We find that the coherence of the cavity emission after a quantum quench can be used to determine the phase diagram of an optical many-body system even in the presence of dissipation.

Titolo:	Signatures of the superfluid-insulator phase transition in laser-driven dissipative nonlinear cavity arrays
Autori:	TOMADIN A GIOVANNETTI, VITTORIO FAZIO, ROSARIO GERACE D CARUSOTTO I TURECI H. E IMAMOGLU A. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2010
Rivista:	PHYSICAL REVIEW A
Digital Object Identifier (DOI):	http://dx.doi.org/10.1103/PhysRevA.81.061801
Appare nelle tipologie:	1.1 Articolo in rivista

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Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/11384/8191

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