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arXiv · 1508.03904

Short note on the excitonic Mott phase

K. Ziegler·O. L. Berman·R. Ya. Kezerashvili
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Abstract

An exciton gas on a lattice is analyzed in terms of a convergent hopping expansion. For a given chemical potential our calculation provides a sufficient condition for the hopping rate to obtain an exponential decay of the exciton correlation function. This result indicates the existence of a Mott phase in which strong fluctuations destroy the long range correlations in the exciton gas at any temperature, either by thermal or by quantum fluctuations.

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K. Ziegler, O. L. Berman, R. Ya. Kezerashvili. 2016-03-01. Short note on the excitonic Mott phase. https://doi.org/10.1080/14786435.2016.1161860

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