Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Dynamics of a Period-3 Pattern Loaded Bose-Einstein Condensate in an Optical Lattice

Published

Author(s)

A M. Rey, P B. Blakie, Charles W. Clark

Abstract

We discuss the dynamics of a Bose-Einstein condensate initially loaded into every third site of an optical lattice using a description based upon discrete nonlinear Schrodinger equation. An analytic solution is developed for the case of a periodic initial condition and is compared with numerical simulations for more general initial configurations. We show that mean field effects in this system can cause macroscopic quantum self-trapping, a phenomenon already predicted for double well systems. In the presence of a uniform external potential, the atoms exhibit generalized Bloch oscillations which can be interpreted in terms of the interference of three different Bloch states. We also discuss how the momentum distribution of the system can be used as experimental signature of the macroscopic self trapping effect.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)

Keywords

Bose-Einstein condensate, dynamics, mean field, optical lattice, self-trapping superlattice

Citation

Rey, A. , Blakie, P. and Clark, C. (2003), Dynamics of a Period-3 Pattern Loaded Bose-Einstein Condensate in an Optical Lattice, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed April 21, 2024)
Created May 1, 2003, Updated June 2, 2021