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

Igor B. Mekhov·Christoph Maschler·Helmut Ritsch
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Abstract

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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Igor B. Mekhov, Christoph Maschler, Helmut Ritsch. 2007-02-27. Cavity enhanced light scattering in optical lattices to probe atomic quantum statistics. https://doi.org/10.1103/physrevlett.98.100402

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