Laser from a Manybody Correlated Medium

Abstract

We consider a non-equilibrium system of interacting emitters described by the XXZ model, whose excitonic transitions are spatially and spectrally coupled to a single mode cavity. We demonstrate that the output radiation field is sensitive to an interplay between the hopping ($J$) and the interactions ($U$) of the excitons. Moderate values of the short-ranged interaction are shown to induce laser with maximal output at the Heisenberg point ($U=J$). In the laser regime, charge-charge correlations emerge and they are shown to strongly depend on the interaction-hopping ratio. In particular, the system shows charge-density correlations below the Heisenberg point and ferromagnetic correlations beyond the Heisenberg point. This contrast to the equilibrium behavior of the XXZ chain occurs since the laser explores highly excited states of the emitters.

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Cited by in corpus (6)

• High-temperature coherent transport in the XXZ chain in the presence of an impurity
• Collective dynamics of inhomogeneously broadened emitters coupled to an optical cavity with narrow linewidth
• Polariton spectrum of the Dicke-Ising model
• Invariant Neural Network Ansatz for weakly symmetric Open Quantum Lattices
• Multipartite entanglement generation in coupled microcavity arrays
• Quantum stabilization of photonic spatial correlations