Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum theory of multimode polariton condensation   We develop a theory for the dynamics of the density matrix describing a
multimode polariton condensate. In such a condensate several single-particle
orbitals become highly occupied, due to stimulated scattering from reservoirs
of high-energy excitons. A generic few-parameter model for the system leads to
a Lindblad equation which includes saturable pumping, decay, and condensate
interactions. We show how this theory can be used to obtain the population
distributions, and the time-dependent first- and second-order coherence
functions, in such a multimode condensate. As a specific application, we
consider a polaritonic Josephson junction, formed from a double-well potential.
We obtain the population distributions, emission line shapes, and widths
(first-order coherence functions), and predict the dephasing time of the
Josephson oscillations.

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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn
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The categories of this paper are: atom-ph
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The categories of this paper are: econ
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The categories of this paper are: plasm-ph
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The categories of this paper are: solv-int
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The categories of this paper are: eess
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The categories of this paper are: stat
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The categories of this paper are: chem-ph
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The categories of this paper are: physics
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The categories of this paper are: q-fin
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The categories of this paper are: cmp-lg
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The categories of this paper are: nlin
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The categories of this paper are: hep-th
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The categories of this paper are: funct-an