Cluster mean field plus density matrix renormalization theory for the Bose Hubbard models

dc.contributor.author	Gaude, P.P.
dc.contributor.author	Das, A.
dc.contributor.author	Pai, R.V.
dc.date.accessioned	2022-07-14T07:12:07Z
dc.date.available	2022-07-14T07:12:07Z
dc.date.issued	2022
dc.identifier.citation	Journal of Physics A: Mathematical and Theoretical. 55(26); 2022; ArticleID_265004.	en_US
dc.identifier.uri	https://doi.org/10.1088/1751-8121/ac71e7
dc.identifier.uri	http://irgu.unigoa.ac.in/drs/handle/unigoa/6813
dc.description.abstract	The cluster mean-field with density matrix renormalization (CMFT + DMRG) method which combines the simplicity of the mean-field theory and the numerical power of the density-matrix renormalization group method is applied to understand the quantum phases of the one-dimensional Bose-Hubbard models. We show that the CMFT + DMRG method is an effective numerical technique with moderate computational resources to determine relevant order parameters and correlation functions of large one-dimensional systems. We apply the CMFT + DMRG for the Bose Hubbard and extended Bose Hubbard models to account for the superfluid, Mott insulator, and density wave phases in these models. Our results are in good agreement with the known phase diagram of these models, demonstrating the efficacy of this method.	en_US
dc.publisher	IOP Publishing	en_US
dc.subject	Physics	en_US
dc.title	Cluster mean field plus density matrix renormalization theory for the Bose Hubbard models	en_US
dc.type	Journal article	en_US
dc.identifier.impf	y