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Phase-Sensitive Recombination of Two Bose-Einstein Condensates on an Atom Chip

2007; American Physical Society; Volume: 98; Issue: 18 Linguagem: Inglês

10.1103/physrevlett.98.180401

1092-0145

Gyu-Boong Jo, J. H. Choi, Caleb A. Christensen, T. A. Pasquini, Ye-Ryoung Lee, Wolfgang Ketterle, D. E. Pritchard,

Quantum Mechanics and Applications

The recombination of two split Bose-Einstein condensates on an atom chip is shown to result in heating which depends on the relative phase of the two condensates. This heating reduces the number of condensate atoms between 10% and 40% and provides a robust way to read out the phase of an atom interferometer without the need for ballistic expansion. The heating may be caused by the dissipation of dark solitons created during the merging of the condensates.