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Matter Wave Sidebands from a Complex Potential with Temporal Helicity

Stefan Bernet, Roland Abfalterer, Claudia Keller, Jorg Schmiedmayer and Anton Zeilinger
Proceedings: Mathematical, Physical and Engineering Sciences
Vol. 455, No. 1984 (Apr. 8, 1999), pp. 1509-1520
Published by: Royal Society
Stable URL: http://www.jstor.org/stable/53381
Page Count: 12
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Matter Wave Sidebands from a Complex Potential with Temporal Helicity
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Abstract

Atoms are diffracted at tailored time-modulated complex potential gratings made of light. Modulating both real and imaginary parts separately, the potential winds like a corkscrew in complex space. This temporal helicity induces energy transfers only in one single direction. As a result we present, to our knowledge, the first observation of asymmetric frequency sidebands of atomic matter waves.

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