Time-resolved observation of coherent multi-body interactions in quantum phase revivals

Sebastian Will (), Thorsten Best, Ulrich Schneider, Lucia Hackermüller, Dirk-Sören Lühmann and Immanuel Bloch
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Sebastian Will: Institut für Physik, Johannes Gutenberg-Universität
Thorsten Best: Institut für Physik, Johannes Gutenberg-Universität
Ulrich Schneider: Institut für Physik, Johannes Gutenberg-Universität
Lucia Hackermüller: Institut für Physik, Johannes Gutenberg-Universität
Dirk-Sören Lühmann: Institut für Theoretische Physik, Universität Hamburg
Immanuel Bloch: Institut für Physik, Johannes Gutenberg-Universität

Nature, 2010, vol. 465, issue 7295, 197-201

Abstract: The sign of six Interactions between microscopic particles are usually described as two-body interactions, although it has been shown that higher order multi-body interactions could give rise to novel quantum phases with intriguing properties. This paper demonstrates effective six-body interactions in a system of ultracold bosonic atoms in a three-dimensional optical lattice. The coherent multi-particle interactions observed here open a new window for simulations of effective field theories and may help to enable the realization of novel topologically ordered many-body quantum phases.

Date: 2010
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DOI: 10.1038/nature09036

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