Limits to phase resolution in matter wave interferometry
Quantum Physics
2009-11-10 v1
Abstract
We study the quantum dynamics of a two-mode Bose-Einstein condensate in a time-dependent symmetric double-well potential using analytical and numerical methods. The effects of internal degrees of freedom on the visibility of interference fringes during a stage of ballistic expansion are investigated varying particle number, nonlinear interaction sign and strength as well as tunneling coupling. Expressions for the phase resolution are derived and the possible enhancement due to squeezing is discussed. In particular, the role of the superfluid - Mott insulator cross-over and its analog for attractive interactions is recognized.
Cite
@article{arxiv.quant-ph/0407015,
title = {Limits to phase resolution in matter wave interferometry},
author = {M. Jääskeläinen and W. Zhang and P. Meystre},
journal= {arXiv preprint arXiv:quant-ph/0407015},
year = {2009}
}
Comments
10 pages, 9 figures