Mean-field analysis of quantum phase transitions in a periodic optical superlattice

dc.contributor.author	Dhar, A
dc.contributor.author	Singh, Manpreet
dc.contributor.author	Rai, R. V
dc.contributor.author	Das, B. P
dc.date.accessioned	2011-10-19T11:25:15Z
dc.date.available	2011-10-19T11:25:15Z
dc.date.issued	2011-09
dc.identifier.citation	Physical Review A, Vol. 84, No. 3, 033631	en
dc.identifier.uri	http://hdl.handle.net/2248/5600
dc.description.abstract	We analyze the various phases exhibited by a system of ultracold bosons in a periodic optical superlattice using the mean-field decoupling approximation. We investigate for a wide range of commensurate and incommensurate densities. We find the gapless superfluid phase, the gapped Mott insulator phase, and gapped insulator phases with distinct density wave orders.	en
dc.language.iso	en	en
dc.publisher	American Physical Society	en
dc.relation.uri	http://link.aps.org/doi/10.1103/PhysRevA.84.033631	en
dc.rights	© American Physical Society	en
dc.subject	Other Bose-Einstein condensation phenomena	en
dc.subject	Renormalization group methods	en
dc.subject	Boson systems	en
dc.title	Mean-field analysis of quantum phase transitions in a periodic optical superlattice	en
dc.type	Article	en