Two-component Bose-Hubbard model with higher-angular-momentum states

Bibliographic description

punktacja MNiSW [2012 A]: 40

title:	Two-component Bose-Hubbard model with higher-angular-momentum states
author:	Pietraszewicz Joanna, Sowiński Tomasz, Brewczyk Mirosław, Zakrzewski Jakub , Lewenstein Maciej, Gajda Mariusz
journal title:	Physical Review. A, Atomic, Molecular, and Optical Physics
volume:	85
issue:	5
date of publication :	2012
article ID:	053638
ISSN:	1050-2947
eISSN:	1094-1622 1538-4446
DOI:	10.1103/PhysRevA.85.053638
language:	English
journal language:	English
abstract in English:	Bose-Hubbard Hamiltonian of cold two-component Bose gas of spinor chromium atoms is studied. Dipolar interactions of magnetic moments while tuned resonantly by an ultralow magnetic field can lead to a transfer of atoms from the ground to excited Wannier states with a nonvanishing angular orbital momentum. Hence we propose the way of creating Px+iPy orbital superfluid. The spin introduces an additional degree of control and leads to a variety of different stable phases of the system. The Mott insulator of atoms in a superposition of the ground and vortex Wannier states as well as a superposition of the Mott insulator with orbital superfluid are predicted.
affiliation:	Wydział Lekarski : Zakład Histologii, Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
type:	journal article
subtype:	academic paper

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