Disordered Supersolids in the Extended Bose-Hubbard Model
Abstract
The extended Bose-Hubbard model captures the essential properties of a wide variety of physical systems including ultracold atoms and molecules in optical lattices, Josephson junction arrays, and certain narrow band superconductors. It exhibits a rich phase diagram including a supersolid phase where a lattice solid coexists with a superfluid. We use quantum Monte Carlo to study the supersolid part of the phase diagram of the extended Bose-Hubbard model on the simple cubic lattice. We add disorder to the extended Bose-Hubbard model and find that the maximum critical temperature for the supersolid phase tends to be suppressed by disorder. But we also find a narrow parameter window in which the supersolid critical temperature is enhanced by disorder. Our results show that supersolids survive a moderate amount of spatial disorder and thermal fluctuations in the simple cubic lattice.
- Authors:
-
- Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1408653
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scientific Reports
- Additional Journal Information:
- Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 2045-2322
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Lin, Fei, Maier, T. A., and Scarola, V. W. Disordered Supersolids in the Extended Bose-Hubbard Model. United States: N. p., 2017.
Web. doi:10.1038/s41598-017-13040-9.
Lin, Fei, Maier, T. A., & Scarola, V. W. Disordered Supersolids in the Extended Bose-Hubbard Model. United States. https://doi.org/10.1038/s41598-017-13040-9
Lin, Fei, Maier, T. A., and Scarola, V. W. Fri .
"Disordered Supersolids in the Extended Bose-Hubbard Model". United States. https://doi.org/10.1038/s41598-017-13040-9. https://www.osti.gov/servlets/purl/1408653.
@article{osti_1408653,
title = {Disordered Supersolids in the Extended Bose-Hubbard Model},
author = {Lin, Fei and Maier, T. A. and Scarola, V. W.},
abstractNote = {The extended Bose-Hubbard model captures the essential properties of a wide variety of physical systems including ultracold atoms and molecules in optical lattices, Josephson junction arrays, and certain narrow band superconductors. It exhibits a rich phase diagram including a supersolid phase where a lattice solid coexists with a superfluid. We use quantum Monte Carlo to study the supersolid part of the phase diagram of the extended Bose-Hubbard model on the simple cubic lattice. We add disorder to the extended Bose-Hubbard model and find that the maximum critical temperature for the supersolid phase tends to be suppressed by disorder. But we also find a narrow parameter window in which the supersolid critical temperature is enhanced by disorder. Our results show that supersolids survive a moderate amount of spatial disorder and thermal fluctuations in the simple cubic lattice.},
doi = {10.1038/s41598-017-13040-9},
journal = {Scientific Reports},
number = 1,
volume = 7,
place = {United States},
year = {Fri Oct 06 00:00:00 EDT 2017},
month = {Fri Oct 06 00:00:00 EDT 2017}
}
Web of Science
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Works referencing / citing this record:
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