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arXiv · 1311.1783

Effective three-body interactions via photon-assisted tunneling in an optical lattice

Andrew J. Daley·Jonathan Simon
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Abstract

We present a simple, experimentally realizable method to make coherent three-body interactions dominate the physics of an ultracold lattice gas. Our scheme employs either lattice modulation or laser-induced tunneling to reduce or turn off two-body interactions in a rotating frame, promoting three-body interactions arising from multi-orbital physics to leading-order processes. This approach provides a route to strongly-correlated phases of lattice gases that are beyond the reach of previously proposed dissipative three-body interactions. In particular, we study the mean-field phase diagram for spinless bosons with three- and two- body interactions, and provide a roadmap to dimer states of varying character in 1D. This new toolset should be immediately applicable in state-of-the-art cold atom experiments.

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Andrew J. Daley, Jonathan Simon. 2013-11-07. Effective three-body interactions via photon-assisted tunneling in an optical lattice. https://doi.org/10.1103/physreva.89.053619

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