6533b823fe1ef96bd127e0e8
RESEARCH PRODUCT
Spontaneous, collective coherence in driven, dissipative cavity arrays
J. Ruiz-rivasPaul GartnerMichael J. HartmannMichael J. HartmannChristopher GiesE. Del Vallesubject
PhysicsQuantum PhysicsPhotonCondensed matter physicsCondensed Matter - Mesoscale and Nanoscale PhysicsCavity quantum electrodynamicsFOS: Physical sciencesPhysics::OpticsObservableDissipationAtomic and Molecular Physics and OpticsQuantum electrodynamicsMesoscale and Nanoscale Physics (cond-mat.mes-hall)Dissipative systemQuantum Physics (quant-ph)ScalingLasing thresholdCoherence (physics)description
We study an array of dissipative tunnel-coupled cavities, each interacting with an incoherently pumped two-level emitter. For cavities in the lasing regime, we find correlations between the light fields of distant cavities, despite the dissipation and the incoherent nature of the pumping mechanism. These correlations decay exponentially with distance for arrays in any dimension but become increasingly long ranged with increasing photon tunneling between adjacent cavities. The interaction-dominated and the tunneling-dominated regimes show markedly different scaling of the correlation length which always remains finite due to the finite photon trapping time. We propose a series of observables to characterize the spontaneous build-up of collective coherence in the system.
year | journal | country | edition | language |
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2014-01-22 |