Feedback control of an interacting Bose-Einstein condensate using phase-contrast imaging

Details Feedback control of an interacting Bose-Einstein condensate using phase-contrast imaging Feedback control of an interacting Bose-Einstein condensate using phase-contrast imaging

2010-09-03

arxiv.org/abs/1009.0587v1

Physics

Atomic Physics

12 pages, 5 figures

Scientific paper

The linewidth of an atom laser is limited by density fluctuations in the Bose-Einstein condensate (BEC) from which the atom laser beam is outcoupled. In this paper we show that a stable spatial mode for an interacting BEC can be generated using a realistic control scheme that includes the effects of the measurement backaction. This model extends the feedback theory, based on a phase-contrast imaging setup, presented in \cite{Szigeti:2009}. In particular, it is applicable to a BEC with large interatomic interactions and solves the problem of inadequacy of the mean-field (coherent state) approximation by utilising a fixed number state approximation. Our numerical analysis shows the control to be more effective for a condensate with a large nonlinearity.

Affiliated with

Also associated with

No associations

Rating

Feedback control of an interacting Bose-Einstein condensate using phase-contrast imaging does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Feedback control of an interacting Bose-Einstein condensate using phase-contrast imaging, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feedback control of an interacting Bose-Einstein condensate using phase-contrast imaging will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-684392