Single-site-resolved measurement of the current statistics in optical lattices

Kessler, Stefan; Marquardt, Florian

doi:10.1103/PhysRevA.89.061601

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Single-site-resolved measurement of the current statistics in optical lattices

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Marquardt, Florian
Marquardt Group, Associated Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Zitation

Kessler, S., & Marquardt, F. (2014). Single-site-resolved measurement of the current statistics in optical lattices. PHYSICAL REVIEW A, 89(6): 061601. doi:10.1103/PhysRevA.89.061601.

Zitierlink: https://hdl.handle.net/11858/00-001M-0000-002D-65EB-B

Zusammenfassung

At present, great effort is spent on the experimental realization of gauge fields for quantum many-body systems in optical lattices. At the same time, the single-site-resolved detection of individual atoms has become a new powerful experimental tool. We discuss a protocol for the single-site-resolved measurement of the current statistics of quantum many-body systems, which makes use of a bichromatic optical superlattice and single-site detection. We illustrate the protocol by a numerical study of the current statistics for interacting bosons in one and two dimensions and discuss the role of the on-site interactions for the current pattern and the ground-state symmetry for small two-dimensional lattices with artificial magnetic fields.