Journal
PHYSICAL REVIEW LETTERS
Volume 107, Issue 17, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.175302
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Funding
- NDSEG
- NSF through the Center of Ultracold Atoms [PHY-0969731]
- NSF through an AFOSR [PHY-0969731]
- DARPA [W911NF-07-1-0493]
- Division Of Physics
- Direct For Mathematical & Physical Scien [0969731] Funding Source: National Science Foundation
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We have observed Bragg scattering of photons from quantum degenerate Rb-87 atoms in a three-dimensional optical lattice. Bragg scattered light directly probes the microscopic crystal structure and atomic wave function whose position and momentum width is Heisenberg limited. The spatial coherence of the wave function leads to revivals in the Bragg scattered light due to the atomic Talbot effect. The decay of revivals across the superfluid to Mott insulator transition indicates the loss of superfluid coherence.
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