Details

Autor(en) / Beteiligte

• Tomadin, A.
• Giovannetti, V.
• Fazio, R.
• Gerace, D.
• Carusotto, I.
• Türeci, H. E.
• Imamoglu, A.

Titel

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

Ist Teil von

• Physical review. A, Atomic, molecular, and optical physics, 2010-06, Vol.81 (6), Article 061801

Ort / Verlag

United States

Erscheinungsjahr

2010

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• 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.