Bosons confined in optical lattices: the numerical renormalization group revisited
- Author
- Lode Pollet, Stefan Rombouts, Kristiaan Heyde (UGent) and J Dukelsky
- Organization
- Abstract
- A Bose-Hubbard model, describing bosons in a harmonic trap with a superimposed optical lattice, is studied using a fast and accurate variational technique (MF+NRG): the Gutzwiller mean-field (MF) ansatz is combined with a numerical renormalization group (NRG) procedure in order to improve on both. Results are presented for one, two, and three dimensions, with particular attention to the experimentally accessible momentum distribution and possible satellite peaks in this distribution. In one dimension, a comparison is made with exact results obtained using stochastic series expansion.
- Keywords
- SUPERFLUID-INSULATOR-TRANSITION, BOSE-HUBBARD MODEL, MOTT INSULATOR, MONTE-CARLO, PHASE, LOCALIZATION, SYSTEMS, SUPERSOLIDS, GRAINS, ATOMS
Downloads
-
pra pollet 2004.pdf
- full text
- |
- open access
- |
- |
- 192.10 KB
Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-313269
- MLA
- Pollet, Lode, et al. “Bosons Confined in Optical Lattices: The Numerical Renormalization Group Revisited.” PHYSICAL REVIEW A, vol. 69, no. 4, 2004, doi:10.1103/PhysRevA.69.043601.
- APA
- Pollet, L., Rombouts, S., Heyde, K., & Dukelsky, J. (2004). Bosons confined in optical lattices: the numerical renormalization group revisited. PHYSICAL REVIEW A, 69(4). https://doi.org/10.1103/PhysRevA.69.043601
- Chicago author-date
- Pollet, Lode, Stefan Rombouts, Kristiaan Heyde, and J Dukelsky. 2004. “Bosons Confined in Optical Lattices: The Numerical Renormalization Group Revisited.” PHYSICAL REVIEW A 69 (4). https://doi.org/10.1103/PhysRevA.69.043601.
- Chicago author-date (all authors)
- Pollet, Lode, Stefan Rombouts, Kristiaan Heyde, and J Dukelsky. 2004. “Bosons Confined in Optical Lattices: The Numerical Renormalization Group Revisited.” PHYSICAL REVIEW A 69 (4). doi:10.1103/PhysRevA.69.043601.
- Vancouver
- 1.Pollet L, Rombouts S, Heyde K, Dukelsky J. Bosons confined in optical lattices: the numerical renormalization group revisited. PHYSICAL REVIEW A. 2004;69(4).
- IEEE
- [1]L. Pollet, S. Rombouts, K. Heyde, and J. Dukelsky, “Bosons confined in optical lattices: the numerical renormalization group revisited,” PHYSICAL REVIEW A, vol. 69, no. 4, 2004.
@article{313269, abstract = {{A Bose-Hubbard model, describing bosons in a harmonic trap with a superimposed optical lattice, is studied using a fast and accurate variational technique (MF+NRG): the Gutzwiller mean-field (MF) ansatz is combined with a numerical renormalization group (NRG) procedure in order to improve on both. Results are presented for one, two, and three dimensions, with particular attention to the experimentally accessible momentum distribution and possible satellite peaks in this distribution. In one dimension, a comparison is made with exact results obtained using stochastic series expansion.}}, articleno = {{043601}}, author = {{Pollet, Lode and Rombouts, Stefan and Heyde, Kristiaan and Dukelsky, J}}, issn = {{1050-2947}}, journal = {{PHYSICAL REVIEW A}}, keywords = {{SUPERFLUID-INSULATOR-TRANSITION,BOSE-HUBBARD MODEL,MOTT INSULATOR,MONTE-CARLO,PHASE,LOCALIZATION,SYSTEMS,SUPERSOLIDS,GRAINS,ATOMS}}, language = {{eng}}, number = {{4}}, title = {{Bosons confined in optical lattices: the numerical renormalization group revisited}}, url = {{http://doi.org/10.1103/PhysRevA.69.043601}}, volume = {{69}}, year = {{2004}}, }
- Altmetric
- View in Altmetric
- Web of Science
- Times cited: