Phase diagram of a bosonic ladder with two coupled chains

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/4256

Title:	Phase diagram of a bosonic ladder with two coupled chains
Authors:	Sethi Luthra, M Mishra, T Pai, R. V Das, B. P
Keywords:	Condensed Matter Statistical Mechanics Condensed Matter - Other
Issue Date:	Oct-2008
Publisher:	American Physical Society
Citation:	Physical Review B, Vol. 78, No. 16, pp. 165104
Abstract:	We study a bosonic ladder with two coupled chains using the finite size density matrix renormalisation group method. We show that in a commensurate bosonic ladder the critical on-site interaction ($U_C$) for the superfluid to Mott insulator transition becomes larger as the inter-chain hopping ($t_\bot$)increases. We analyze this quantum phase transition and obtain the phase diagram in the $t_\bot -U$ plane.
URI:	http://hdl.handle.net/2248/4256
ISSN:	1098-0121
Appears in Collections:	IIAP Publications

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