2010•Physical Review LettersOpen access

Direct Observation of a Sub-Poissonian Number Distribution of Atoms in an Optical Lattice

Amir Itah, Hagar Veksler, Oren Lahav, A. Blumkin, C. A. Moscoso Moreno, Carmit Gordon, Jeff Steinhauer

Abstract

We report single-site resolution in a lattice with tunneling between sites, allowing for an in situ study of stochastic losses. The ratio of the loss rate to the tunneling rate is seen to determine the number fluctuations, and the overall profile of the lattice. Sub-Poissonian number fluctuations are observed. Deriving the lattice beams from a microlens array results in perfect relative stability between beams.

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Key concepts: Reciprocal lattice, Optical lattice, Lattice (music), Physics, Empty lattice approximation, Particle in a one-dimensional lattice, Mott insulator, Lattice plane