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Conferences > QELS > 1996 > QPD > QPD8
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1996),
  • paper QPD8

Observation of Atomic Wannier-Stark Ladders

C. F. Bharucha, K. W. Madison, Qian Mu, S. R. Wilkinson, and M.G. Raizen

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Abstract

We report the first observation of atomic Wannier-Stark ladders in a potential formed by an accelerating standing wave of light.1 This is a fundamental effect of quantum transport in optical lattices. Wannier-Stark ladder resonances were predicted to occur in the band structure of an electron moving in a periodic lattice with a dc electric field, and have been recently observed in superlattices. Our work is the first spectroscopic study of Wannier-Stark ladders free from complications such as the impurities, lattice vibrations, and multi-particle interactions present in solids.

© 1996 Optical Society of America

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