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physics.atom-ph2018
Competition effects of multiple quantum paths in an atom interferometer
Si-Bin Lu, Zhan-Wei Yao, Run-Bing Li +6
We present an observation of competition effect among multiple quantum paths in a Raman-type Mach-Zehnder atom interferometer. By measuring the contrast of interference fringes, th…
cond-mat.quant-gas2018
Observation of phonon parametric down-conversion in a spherical Bose-Einstein condensate
Tianyou Gao, Jian-Song Pan, Dongfang Zhang +8
We report the observation of parametric down-conversion of phonons in a spherical Bose-Einstein condensate. The spherical symmetry, which is crucial for observing this phenomenon,…