Fringe spacing and phase of interfering matter waves

Vainio, O., Vale, C. J., Davis, M. J., Heckenberg, N. R. and Rubinsztein-Dunlop, H. (2006) Fringe spacing and phase of interfering matter waves. Physical Review A, 73 6: 063613-1-063613-6. doi:10.1103/PhysRevA.73.063613

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Author Vainio, O.
Vale, C. J.
Davis, M. J.
Heckenberg, N. R.
Rubinsztein-Dunlop, H.
Title Fringe spacing and phase of interfering matter waves
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
Publication date 2006-01-01
Sub-type Article (original research)
DOI 10.1103/PhysRevA.73.063613
Open Access Status File (Publisher version)
Volume 73
Issue 6
Start page 063613-1
End page 063613-6
Total pages 6
Editor B Crasemann
Place of publication United States
Publisher American Physical Society
Language eng
Subject C1
240301 Atomic and Molecular Physics
780102 Physical sciences
Abstract We experimentally investigate the outcoupling of atoms from Bose-Einstein condensates using two radio-frequency (rf) fields in the presence of gravity. We show that the fringe separation in the resulting interference pattern derives entirely from the energy difference between the two rf fields and not the gravitational potential difference between the two resonances. We subsequently demonstrate how the phase and polarization of the rf radiation directly control the phase of the matter wave interference and provide a semiclassical interpretation of the results.
Keyword Optics
Physics, Atomic, Molecular & Chemical
Bose-einstein Condensate
Output Coupler
Spatial Coherence
Atom Laser
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 18:10:16 EST