Collective pairing of resonantly coupled microcavity polaritons

F. M. Marchetti; J. Keeling

doi:10.1103/physrevlett.113.216405

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arXiv · 1308.1032

Collective pairing of resonantly coupled microcavity polaritons

F. M. Marchetti·J. Keeling

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Abstract

We consider the possible phases of microcavity polaritons tuned near a bipolariton Feshbach resonance. We show that, as well as the regular polariton superfluid phase, a "molecular" superfluid exists, with (quasi-)long-range order only for pairs of polaritons. We describe the experimental signatures of this state. Using variational approaches we find the phase diagram (critical temperature, density and exciton-photon detuning). Unlike ultracold atoms, the molecular superfluid is not inherently unstable, and our phase diagram suggests it is attainable in current experiments.

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BibTeX RIS

F. M. Marchetti, J. Keeling. 2014-08-29. Collective pairing of resonantly coupled microcavity polaritons. https://doi.org/10.1103/physrevlett.113.216405

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