Ramanan, S and Mishra, Tapan and Luthra, Meetu Sethi and Pai, Ramesh V and Das, BP (2009) Signatures of the superfluid-to-Mott-insulator transition in cold bosonic atoms in a one-dimensional optical lattice. In: Physical Review A, 79 (1). 013625-1-013625-8.
![]() |
PDF
4.pdf - Published Version Restricted to Registered users only Download (318kB) | Request a copy |
Abstract
We study the Bose-Hubbard model using the finite size density matrix renormalization group method. We obtain a complete phase diagram for a system in the presence of a harmonic trap and compare it with that of the homogeneous system. The superfluid to the Mott-insulator phase transition is investigated using different experimental signatures of these phases in quantities such as momentum distribution, visibility, condensate fraction, and the total number of bosons at a particular density. The relationships between the various experimental signatures and the phase diagram are highlighted.
Item Type: | Journal Article |
---|---|
Publication: | Physical Review A |
Publisher: | The American Physical Society |
Additional Information: | Copyright of this article belongs to The American Physical Society. |
Keywords: | boson systems;metal-insulator transition;optical lattices;phase diagrams;renormalisation;superfluidity. |
Department/Centre: | Division of Physical & Mathematical Sciences > Centre for High Energy Physics |
Date Deposited: | 30 Oct 2009 10:33 |
Last Modified: | 19 Sep 2010 05:27 |
URI: | http://eprints.iisc.ac.in/id/eprint/19174 |
Actions (login required)
![]() |
View Item |