Direct observation of second-order atom tunnelling

S. Fölling, S. Trotzky, P. Cheinet, M. Feld, R. Saers, A. Widera, T. Müller and I. Bloch ()
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S. Fölling: Institut für Physik, Johannes Gutenberg-Universität
S. Trotzky: Institut für Physik, Johannes Gutenberg-Universität
P. Cheinet: Institut für Physik, Johannes Gutenberg-Universität
M. Feld: Institut für Physik, Johannes Gutenberg-Universität
R. Saers: Umeå University
A. Widera: Institut für Physik, Johannes Gutenberg-Universität
T. Müller: Institut für Physik, Johannes Gutenberg-Universität
I. Bloch: Institut für Physik, Johannes Gutenberg-Universität

Nature, 2007, vol. 448, issue 7157, 1029-1032

Abstract: Direct, time-resolved observations of the correlated tunnelling of two interacting ultracold atoms through a barrier in a double-well potential are reported. Second-order tunnelling events, which are found to be the dominating dynamical effect in the strongly interacting regime, have not been previously directly observed with ultracold atoms.

Date: 2007
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DOI: 10.1038/nature06112

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