Quantum phase transitions in photonic cavities with two-level systems

Details Quantum phase transitions in photonic cavities with two-level systems Quantum phase transitions in photonic cavities with two-level systems

2007-10-30

arxiv.org/abs/0710.5748v3

Physical Review A, 77, 5, 053819, 2008

Physics

Condensed Matter

Other Condensed Matter

11 pages, 11 figures, updated typos

Scientific paper

10.1103/PhysRevA.77.053819

Systems of coupled photonic cavities have been predicted to exhibit quantum phase transitions by analogy with the Hubbard model. To this end, we have studied topologies of few (up to six) photonic cavities each containing a single two-level system. Quantum phase space diagrams are produced for these systems, and compared to mean-field results. We also consider finite effective temperature, and compare this to the notion of disorder. We find the extent of the Mott lobes shrink analogously to the conventional Bose-Hubbard model.

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