期刊
NEW JOURNAL OF PHYSICS
卷 16, 期 -, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/16/7/073035
关键词
atom interferometry; Bose-Einstein condensation; Bragg diffraction; atom optics
资金
- Australian Research Council Discovery program
- CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico)
- IC postdoctoral fellowship program
This paper presents the first realization of a simultaneous Rb-87-Rb-85 Mach-Zehnder atom interferometer with Bose-condensed atoms. A number of ambitious proposals for precise terrestrial and space based tests of the weak equivalence principle rely on such a system. This implementation utilizes hybrid magnetic-optical trapping to produce spatially overlapped condensates with a repetition rate of 20 s. A horizontal optical waveguide with co-linear Bragg beamsplitters and mirrors is used to simultaneously address both isotopes in the interferometer. We observe a non-linear phase shift on a non-interacting Rb-85 interferometer as a function of interferometer time, T, which we show arises from inter-isotope scattering with the co-incident Rb-85 interferometer. A discussion of implications for future experiments is given.
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