Signatures of the super fluid-insulator phase transition in laser driven dissipative nonlinear cavity arrays
We analyze the non-equilibrium dynamics of a gas of interacting photons in an array of coupled dissipative nonlinear cavities driven by a pulsed external coherent field. Using a mean-field approach, we show that the system exhibits a phase transition from a Mott-insulator-like to a superfluid regime...
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| creator | Tomadin, A Giovannetti, V Fazio, R Gerace, D Carusotto, I Tureci, H E Imamoglu, A |
| description | We analyze the non-equilibrium dynamics of a gas of interacting photons in an array of coupled dissipative nonlinear cavities driven by a pulsed external coherent field. Using a mean-field approach, we show that the system exhibits a phase transition from a Mott-insulator-like to a superfluid regime. For a given single-photon nonlinearity, the critical value of the photon tunneling rate at which the phase transition occurs increases with the increasing photon loss rate. We checked the robustness of the transition by showing its insensitivity to the initial state prepared by the the pulsed excitation. We find that the second-order coherence of cavity emission can be used to determine the phase diagram of an optical many-body system without the need for thermalization. |
| doi_str_mv | 10.48550/arxiv.0904.4437 |
| format | Article |
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| ispartof | arXiv.org, 2010-06 |
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| subjects | Fluids Nonlinear analysis Nonlinearity Phase diagrams Phase transitions Photons Physics - Strongly Correlated Electrons Superfluidity Thermalization (energy absorption) |
| title | Signatures of the super fluid-insulator phase transition in laser driven dissipative nonlinear cavity arrays |
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