Phys. Rev. A 75, 043610 (2007) [4 pages]Coherent acceleration of material wave packets in modulated optical fieldsReceived 7 July 2006; revised 7 December 2006; published 16 April 2007 We study the quantum dynamics of a material wave packet bouncing off a modulated atomic mirror in the presence of a gravitational field. We find the occurrence of coherent accelerated dynamics for atoms beyond the familiar regime of dynamical localization. The acceleration takes place for certain initial phase-space data and within specific windows of modulation strengths. The realization of the proposed acceleration scheme is within the range of present-day experimental possibilities. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.75.043610
DOI:
10.1103/PhysRevA.75.043610
PACS:
03.75.−b, 03.65.−w, 05.45.−a, 39.20.+q
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