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APS » Journals » Phys. Rev. A » Volume 61 » Issue 6
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Phys. Rev. A 61, 061402(R) (2000) [4 pages]

Wannier-Stark ladders in driven optical lattices

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M. Glück, M. Hankel, A. R. Kolovsky*, and H. J. Korsch
Fachbereich Physik, Universität Kaiserslautern, D-67653 Kaiserslautern, Germany

Received 7 January 2000; published 2 May 2000

The paper studies the effect of a weak periodic driving on metastable Wannier-Stark states. The decay rate of the ground Wannier-Stark states as a continuous function of the driving frequency is calculated numerically. The theoretical results are compared with the experimental data of Wilkinson et al. [Phys. Rev. Lett. 76, 4512 (1996)] obtained for cold sodium atoms in an accelerated optical lattice.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.61.061402
DOI:
10.1103/PhysRevA.61.061402
PACS:
32.80.Pj, 03.75.-b, 42.50.Hz, 03.65.-w

*Also at L. V. Kirensky Institute of Physics, 660036 Krasnoyarsk, Russia.

 
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