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Phonon instability of insulating states in optical lattices
- Source :
- J. Phys. Conf. Ser. 691 (2016) 012014
- Publication Year :
- 2016
-
Abstract
- The influence of collective phonon excitations, due to intersite atomic interactions, on the stability of optical lattices is analyzed. These phonon excitations are shown to essentially reduce the ability of atoms to be localized. The states that seem to be insulating in the absence of the phonon excitations can become delocalized when the latter are present. The delocalization effect exists for both long-range as well as local atomic interactions.<br />Comment: Latex file, 9 pages, 1 figure
- Subjects :
- Condensed Matter - Quantum Gases
Subjects
Details
- Database :
- arXiv
- Journal :
- J. Phys. Conf. Ser. 691 (2016) 012014
- Publication Type :
- Report
- Accession number :
- edsarx.1603.02507
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/1742-6596/691/1/012014