Quantum phase transitions in photonic cavities with two-level systems

May 22nd, 2008  |  Published in All, Papers, Research, Solid Light

Quantum phase transitions in photonic cavities with two-level systems

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.

Comments: 11 pages, 11 figures, updated typos
Subjects: Other Condensed Matter (cond-mat.other)
Journal reference: Physical Review A, 77, 5, 053819, 2008
DOI: 10.1103/PhysRevA.77.053819
Cite as: arXiv:0710.5748v3 [cond-mat.other]

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