Picture of neon light reading 'Open'

Discover open research at Strathprints as part of International Open Access Week!

23-29 October 2017 is International Open Access Week. The Strathprints institutional repository is a digital archive of Open Access research outputs, all produced by University of Strathclyde researchers.

Explore recent world leading Open Access research content this Open Access Week from across Strathclyde's many research active faculties: Engineering, Science, Humanities, Arts & Social Sciences and Strathclyde Business School.

Explore all Strathclyde Open Access research outputs...

Creation of coherence in Bose-Einstein condensates by atom detection

Horak, Peter and Barnett, Stephen M. (1999) Creation of coherence in Bose-Einstein condensates by atom detection. Journal of Physics B: Atomic, Molecular and Optical Physics, 32. pp. 3421-3436. ISSN 0953-4075

[img]
Preview
Text (strathprints005830)
strathprints005830.pdf - Accepted Author Manuscript

Download (199kB) | Preview

Abstract

We investigate the creation of a relative phase between two Bose-Einstein condensates, initially in number states, by detection of atoms and show how the system approaches a coherent state. Two very distinct time scales are found: one for the creation of the interference is of the order of the detection time for a few single atoms and another, for the preparation of coherent states, is of the order of the detection time for a significant fraction of the total number of atoms. Approximate analytic solutions are derived and compared with exact numerical results.