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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 ISSN 0295-5075.

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Official URL: http://dx.doi.org/10.1209/0295-5075/111/26004

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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
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > 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
Dates:
DateEvent
10 March 2015Submitted
18 July 2015Accepted
10 August 2015Published
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 (Creative Commons)
Date of first compliant deposit: 30 December 2015
Date of first compliant Open Access: 30 December 2015
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
EP/J003476/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
EP/K000128/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
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