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Light Scattering to Determine the Relative Phase of Two Bose-Einstein Condensates

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Science  25 Mar 2005:
Vol. 307, Issue 5717, pp. 1945-1948
DOI: 10.1126/science.1108801

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Abstract

We demonstrated an experimental technique based on stimulated light scattering to continuously sample the relative phase of two spatially separated Bose-Einstein condensates of atoms. The phase measurement process created a relative phase between two condensates with no initial phase relation, read out the phase, and monitored the phase evolution. This technique was used to realize interferometry between two trapped Bose-Einstein condensates without need for splitting or recombining the atom cloud.

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