Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:0708.2196 · Optics Communications

Superfluid properties of a Bose–Einstein condensate in an optical lattice confined in a cavity

Aranya B. Bhattacherjee

Published Feb 14, 2008• 15 citations
arXivHTMLPDF
DOI
10.1016/j.optcom.2008.01.039

Related papers

Bose–Einstein Condensates in a One-Dimensional Optical Lattice: from Superfluidity to Number-Squeezed States

Xiaorui Wang, Lu Yang, Tan Xin-Zhou +2 more

We study the phase coherence property of Bose−Einstein condensates confined in a one-dimensional optical lattice formed by a standing-wave laser field. The lattice depth is determined using a method of Kapitza–Dirac scattering between a condensate and a short pulse lattice potential. Condensates are then adiabatically loaded into the optical lattice. The phase coherence property of the confined condensates is reflected by the interference patterns of the expanded atomic cloud released from the optical lattice. For weak lattice, nearly all of the atoms stay in a superfluid state. However, as the lattice depth is increased, the phase coherence of the whole condensate sample is gradually lost, which confirms that the sub-condensates in each lattice well have evolved into number-squeezed states.

Chinese Physics Letters•Aug 1, 2009•1 citation

Bose-Einstein Condensates in Optical Lattices: Experiments

O. Morsch

Springer eBooks•Dec 29, 2007•0 citations

Dynamical coupling between a Bose–Einstein condensate and a cavity optical lattice

Stephan Ritter, Ferdinand Brennecke, Christine Guerlin +3 more

•Jan 1, 2009•52 citations

Localized Excitations at the Mott Insulator-Superfluid Interfaces for Confined Bose-Einstein Condensates

Eros Mariani, Ady Stern

In this Letter, we derive the dispersion relation of the surface waves at the interfaces between Mott-insulating and superfluid domains for a two-dimensional Bose-Einstein condensate in an optical lattice subjected to a confining potential. We then calculate their contribution to the heat capacity of the system and show how its low-temperature scaling allows an experimental test of the existence and properties of Mott insulator-superfluid domains.

arXiv:cond-mat/0505755•Physical Review Letters•Dec 20, 2005•5 citations

Dynamics of Bose-Einstein condensates in optical lattices

Sarah B. McKinney

•Jan 1, 2004•0 citations

Optomechanical effects in superfluid properties of BEC in an optical lattice

Priyanka Verma, Aranya B. Bhattacherjee, Man Mohan

Abstract We investigate the effects of a movable mirror (cantilever) of an optical cavity on the superfluid properties and the Mott phase boundary of a Bose-Einstein condensate (BEC) in an optical lattice. The Bloch energy, effective mass, Bogoliubov energy and the superfluid fraction are modified due to the mirror motion. The mirror motion is also found to modify the Mott-superfluid phase boundaries. This study reveals that the mirror emerges as a new handle to coherently control the superfluid properties of the BEC.

Open Physics•Nov 18, 2012•0 citations
We study the phase coherence property of Bose−Einstein condensates confined in a one-dimensional optical lattice formed by a standing-wave laser field. The lattice depth is determined using a method of Kapitza–Dirac scattering between a condensate and a short pulse lattice potential. Condensates are then adiabatically loaded into the optical lattice. The phase coherence property of the confined condensates is reflected by the interference patterns of the expanded atomic cloud released from the optical lattice. For weak lattice, nearly all of the atoms stay in a superfluid state. However, as the lattice depth is increased, the phase coherence of the whole condensate sample is gradually lost, which confirms that the sub-condensates in each lattice well have evolved into number-squeezed states.
Abstract We investigate the effects of a movable mirror (cantilever) of an optical cavity on the superfluid properties and the Mott phase boundary of a Bose-Einstein condensate (BEC) in an optical lattice. The Bloch energy, effective mass, Bogoliubov energy and the superfluid fraction are modified due to the mirror motion. The mirror motion is also found to modify the Mott-superfluid phase boundaries. This study reveals that the mirror emerges as a new handle to coherently control the superfluid properties of the BEC.