Numerical study of the hard-core Bose-Hubbard model on an infinite square lattice

Jordan, Jacob, Orus, Roman and Vidal, Guifre (2009) Numerical study of the hard-core Bose-Hubbard model on an infinite square lattice. Physical Review B (Condensed Matter and Materials Physics), 79 17: 174515.1-174515.7. doi:10.1103/PhysRevB.79.174515

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Author Jordan, Jacob
Orus, Roman
Vidal, Guifre
Title Numerical study of the hard-core Bose-Hubbard model on an infinite square lattice
Journal name Physical Review B (Condensed Matter and Materials Physics)   Check publisher's open access policy
ISSN 1098-0121
Publication date 2009-05-08
Sub-type Article (original research)
DOI 10.1103/PhysRevB.79.174515
Open Access Status File (Publisher version)
Volume 79
Issue 17
Start page 174515.1
End page 174515.7
Total pages 7
Editor P. D. Adams
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Subject C1
970102 Expanding Knowledge in the Physical Sciences
020603 Quantum Information, Computation and Communication
Abstract We present a study of the hard-core Bose-Hubbard model at zero temperature on an infinite square lattice using the infinite projected entangled pair state algorithm [J. Jordan, R. Orús, G. Vidal, F. Verstraete, and J. I. Cirac, Phys. Rev. Lett. 101, 250602 (2008)]. Throughout the whole phase diagram our values for the ground-state energy, particle density, and condensate fraction accurately reproduce those previously obtained by other methods. We also explore ground-state entanglement, compute two-point correlators, and conduct a fidelity-based analysis of the phase diagram. Furthermore, for illustrative purposes we simulate the response of the system when a perturbation is suddenly added to the Hamiltonian.
Keyword Boson systems
Josephson-junction arrays
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article number 174515

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
2010 Higher Education Research Data Collection
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Citation counts: TR Web of Science Citation Count  Cited 23 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 25 times in Scopus Article | Citations
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Created: Thu, 03 Sep 2009, 18:01:23 EST by Mr Andrew Martlew on behalf of Physics