Entanglement interferometry for precision measurement of atomic scattering properties
Preprint
- 30 October 2003
Abstract
We report on a two-particle matter wave interferometer realized with pairs of trapped 87Rb atoms. Each pair of atoms is confined at a single site of an optical lattice potential. The interferometer is realized by first creating a coherent spin-mixture of the two atoms and then tuning the inter-state scattering length via a Feshbach resonance. The selective change of the inter-state scattering length leads to an entanglement dynamics of the two-particle state that can be detected in a Ramsey interference experiment. This entanglement dynamics is employed for a precision measurement of atomic interaction parameters. Furthermore, the interferometer allows to separate lattice sites with one or two atoms in a non-destructive way.Keywords
All Related Versions
- Version 1, 2003-10-30, ArXiv
- Published version: Physical Review Letters, 92 (16), 160406.
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