Spatial interference of coherent atomic waves by manipulation of the internal quantum state

Details Spatial interference of coherent atomic waves by manipulation of the internal quantum state Spatial interference of coherent atomic waves by manipulation of the internal quantum state

2001-01-25

arxiv.org/abs/cond-mat/0101386v1

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1364/OL.26.001039

A trapped 87Rb Bose-Einstein condensate is initially put into a superposition of two internal states. Under the effect of gravity and by means of a second transition, we prepare two vertically displaced condensates in the same internal state. These constitute two coherent sources of matter waves with adjustable spatial separation. Fringe patterns, observed after free expansion, are associated with the interplay between internal and external degrees of freedom and substantially agree with those for a double slit experiment.

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