Abstract

We use quantum Monte Carlo (QMC), density matrix renormalization group (DMRG) and time evolution block decimation (TEBD) to study the competition between several exotic quantum phases in the one-dimensional extended bosonic Hubbard model and map its phase diagram. Of particular interest is the Haldane insulating phase which we show to be present only for density p = 1. We also show that the supersolid phase is present for a wide range of parameters including commensurate densities.

Details

Title
Competition between the Haldane insulator, superfluid and supersolid phases in the one-dimensional Bosonic Hubbard Model
Author
Batrouni, G G 1 ; Rousseau, V G 2 ; Scalettar, R T 3 ; Grémaud, B 4 

 INLN, Université de Nice-Sophia Antipolis, CNRS; 1361 route des Lucioles, 06560 Valbonne, France; Institut Universitaire de France, 103, Boulevard Saint-Michel, 75005 Paris, France; Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore; Merlion MajuLab, CNRS-UNS-NUS-NTU International Joint Research Unit UMI 3654, Singapore 
 Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA 
 Physics Department, University of California, Davis, California 95616, USA 
 Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore; Merlion MajuLab, CNRS-UNS-NUS-NTU International Joint Research Unit UMI 3654, Singapore; Laboratoire Kastler Brossel, Ecole Normale Supérieure CNRS, UPMC; 4 Place Jussieu, 75005 Paris, France; Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117542, Singapore 
Publication year
2015
Publication date
Sep 2015
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2576434826
Copyright
© 2015. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.