Cavity enhanced light scattering in optical lattices to probe atomic quantum statistics

Details Cavity enhanced light scattering in optical lattices to probe atomic quantum statistics Cavity enhanced light scattering in optical lattices to probe atomic quantum statistics

2006-10-10

arxiv.org/abs/quant-ph/0610073v2

Phys. Rev. Lett. 98, 100402 (2007)

Physics

Quantum Physics

4 pages, 3 figures, to published in Phys. Rev. Lett. (March 2007)

Scientific paper

10.1103/PhysRevLett.98.100402

Different quantum states of atoms in optical lattices can be nondestructively monitored by off-resonant collective light scattering into a cavity. Angle resolved measurements of photon number and variance give information about atom-number fluctuations and pair correlations without single-site access. Observation at angles of diffraction minima provides information on quantum fluctuations insensitive to classical noise. For transverse probing, no photon is scattered into a cavity from a Mott insulator phase, while the photon number is proportional to the atom number for a superfluid.

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