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The following article is Open access

Engineered quantum tunnelling in extended periodic potentials

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Published under licence by IOP Publishing Ltd
, , Citation Sandro Wimberger et al 2007 J. Phys.: Conf. Ser. 67 012060 DOI 10.1088/1742-6596/67/1/012060

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1 CNR-INFM and Dipartimento di Fisica 'Enrico Fermi', Largo Pontecorvo 3, 1-56127 Pisa, Italy

2 Present address: CNISM and Dipartimento di Fisica del Politecnico, Corso Duca degli Abruzzi 24, 1-10129 Torino, Italy

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1742-6596/67/1/012060

Abstract

Quantum tunnelling from a tilted, but otherwise periodic potential is studied. Our theoretical and experimental results show that, by controlling the system's parameters, we can engineer the escape rate of a Bose-Einstein condensate to an exceptional degree. Possible applications of this atom-optics realization of the open Wannier-Stark system are discussed.

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10.1088/1742-6596/67/1/012060