Phys. Rev. Lett. 92, 050405 (2004) [4 pages]Atom Interferometry with Bose-Einstein Condensates in a Double-Well PotentialReceived 17 July 2003; published 6 February 2004 A trapped-atom interferometer was demonstrated using gaseous Bose-Einstein condensates coherently split by deforming an optical single-well potential into a double-well potential. The relative phase between the two condensates was determined from the spatial phase of the matter wave interference pattern formed upon releasing the condensates from the separated potential wells. Coherent phase evolution was observed for condensates held separated by 13 μm for up to 5 ms and was controlled by applying ac Stark shift potentials to either of the two separated condensates. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.050405
DOI:
10.1103/PhysRevLett.92.050405
PACS:
03.75.Dg, 03.75.Lm, 39.20.+q
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