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Phys Rev Lett. 2006 Feb 10;96(5):050404. Epub 2006 Feb 9.

Atomic current across an optical lattice.

Author information

  • 1Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Strasse 38, 01187 Dresden, Germany.

Abstract

We devise a microscopic model for the emergence of a collision-induced, fermionic atomic current across a tilted optical lattice. Tuning the--experimentally controllable--parameters of the microscopic dynamics allows us to switch from Ohmic to negative differential conductance.

PMID:
16486908
[PubMed]
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