Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/5783
Title: Three-body on-site interactions in ultracold bosonic atoms in optical lattices and superlattices
Authors: Singh, M
Dhar, A
Mishra, T
Pai, R. V
Das, B. P
Keywords: Condensed Matter;Quantum Gases
Issue Date: May-2012
Publisher: American Physical Society
Citation: Physical Review A, Vol. 85, No. 5, 051604
Abstract: The Mott-insulator-superfluid transition for ultracold bosonic atoms in an optical lattice has been extensively studied in the framework of the Bose-Hubbard model with two-body on-site interactions. In this paper, we analyze the additional effect of the three-body on-site interactions on this phase transition in an optical lattice and the transitions between the various phases that arise in an optical superlattice. Using the mean-field theory and the density matrix renormalization group method, we find the phase diagrams depicting the relationships between various physical quantities in an optical lattice and superlattice. We also propose a possible experimental signature to observe the on-site three-body interactions.
Description: Restricted Access
URI: http://hdl.handle.net/2248/5783
ISSN: 1050-2947
???metadata.dc.rights???: © American Physical Society
???metadata.dc.relation.uri???: http://dx.doi.org/10.1103/PhysRevA.85.051604
Appears in Collections:IIAP Publications

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