Quantum phase transitions in photonic cavities with two-level systems
(Submitted on 30 Oct 2007 (v1), last revised 22 May 2008 (this version, v3))
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] |