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Using entanglement to discern phases in the disordered one-dimensional Bose-Hubbard model
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Goldsborough, Andrew M. and Römer, Rudolf A. (2015) Using entanglement to discern phases in the disordered one-dimensional Bose-Hubbard model. Europhysics letters (EPL), 111 (2). pp. 1-6. 26004. doi:10.1209/0295-5075/111/26004
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Official URL: http://dx.doi.org/10.1209/0295-5075/111/26004
Abstract
We perform a matrix-product-state–based density matrix renormalisation group analysis of the phases for the disordered one-dimensional Bose-Hubbard model. For particle densities N/L = 1, 1/2 and 2 we show that it is possible to obtain a full phase diagram using only the entanglement properties, which come for free when performing an update. We confirm the presence of Mott insulating, superfluid and Bose glass phases when N/L = 1 and 1/2 (without the Mott insulator) as found in previous studies. For the N/L = 2 system we find a double-lobed superfluid phase with possible re-entrance.
| Item Type: | Journal Article | |||||||||
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| Subjects: | Q Science > QC Physics | |||||||||
| Divisions: | Faculty of Science > Physics | |||||||||
| Library of Congress Subject Headings (LCSH): | Bosons, Bose-Einstein condensation | |||||||||
| Journal or Publication Title: | Europhysics letters (EPL) | |||||||||
| Publisher: | Institute of Physics Publishing Ltd. | |||||||||
| ISSN: | 0295-5075 | |||||||||
| Official Date: | 10 August 2015 | |||||||||
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| Volume: | 111 | |||||||||
| Number: | 2 | |||||||||
| Number of Pages: | 6 | |||||||||
| Page Range: | pp. 1-6 | |||||||||
| Article Number: | 26004 | |||||||||
| DOI: | 10.1209/0295-5075/111/26004 | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Access rights to Published version: | Open Access | |||||||||
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