Local and spatially extended sub-Poisson atom-number fluctuations in optical lattices
Abstract
We demonstrate that ultracold interacting bosonic atoms in an optical lattice with large on-site population show sub-Poisson on-site and intersite atom-number fluctuations. The experimental observations agree with numerical predictions of the truncated Wigner approximation. The correlations persist in the presence of multimode atom dynamics and even over large spatially extended samples involving several sites.
- Publication:
-
Physical Review A
- Pub Date:
- July 2011
- DOI:
- arXiv:
- arXiv:1008.4603
- Bibcode:
- 2011PhRvA..84a1609G
- Keywords:
-
- 03.75.Lm;
- 03.75.Gg;
- 03.65.Ta;
- 42.50.Lc;
- Tunneling Josephson effect Bose-Einstein condensates in periodic potentials solitons vortices and topological excitations;
- Entanglement and decoherence in Bose-Einstein condensates;
- Foundations of quantum mechanics;
- measurement theory;
- Quantum fluctuations quantum noise and quantum jumps;
- Condensed Matter - Quantum Gases;
- Quantum Physics
- E-Print:
- Phys. Rev. A 84 (2011) 011609(R)