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arXiv · 0707.1497

Polaritonic characteristics of insulator and superfluid phases in a coupled-cavity array

E. K. Irish·C. D. Ogden·M. S. Kim
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Abstract

Recent studies of quantum phase transitions in coupled atom-cavity arrays have focused on the similarities between such systems and the Bose-Hubbard model. However, the bipartite nature of the atom-cavity systems that make up the array introduces some differences. In order to examine the unique features of the coupled-cavity system, the behavior of a simple two-site model is studied over a wide range of parameters. Four regions are identified, in which the ground state of the system may be classified as either a polaritonic insulator, a photonic superfluid, an atomic insulator, or a polaritonic superfluid.

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E. K. Irish, C. D. Ogden, M. S. Kim. 2007-07-10. Polaritonic characteristics of insulator and superfluid phases in a coupled-cavity array. https://doi.org/10.1103/physreva.77.033801

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