Coherent Delocalization of Atomic Wave Packets in Driven Lattice Potentials
Atomic Physics
2009-11-13 v1 Optics
Abstract
Atomic wave packets loaded into a phase-modulated vertical optical-lattice potential exhibit a coherent delocalization dynamics arising from intraband transitions among Wannier-Stark levels. Wannier-Stark intraband transitions are here observed by monitoring the in situ wave-packet extent. By varying the modulation frequency, we find resonances at integer multiples of the Bloch frequency. The resonances show a Fourier-limited width for interrogation times up to 2 s. This can also be used to determine the gravity acceleration with ppm resolution.
Cite
@article{arxiv.0801.1570,
title = {Coherent Delocalization of Atomic Wave Packets in Driven Lattice Potentials},
author = {V. V. Ivanov and A. Alberti and M. Schioppo and G. Ferrari and M. Artoni and M. L. Chiofalo and G. M. Tino},
journal= {arXiv preprint arXiv:0801.1570},
year = {2009}
}
Comments
4 pages