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Return to the Origin as a Probe of Atomic Phase Coherence.

作者信息

Hainaut Clément, Manai Isam, Chicireanu Radu, Clément Jean-François, Zemmouri Samir, Garreau Jean Claude, Szriftgiser Pascal, Lemarié Gabriel, Cherroret Nicolas, Delande Dominique

机构信息

Université de Lille, CNRS, UMR 8523-PhLAM-Laboratoire de Physique des Lasers Atomes et Molécules, F-59000 Lille, France.

Laboratoire de Physique Théorique, UMR 5152, CNRS and Université de Toulouse, F-31062 Toulouse, France.

出版信息

Phys Rev Lett. 2017 May 5;118(18):184101. doi: 10.1103/PhysRevLett.118.184101.

DOI:10.1103/PhysRevLett.118.184101
PMID:28524683
Abstract

We report on the observation of the coherent enhancement of the return probability ["enhanced return to the origin" (ERO)] in a periodically kicked cold-atom gas. By submitting an atomic wave packet to a pulsed, periodically shifted, laser standing wave, we induce an oscillation of ERO in time that is explained in terms of a periodic, reversible dephasing in the weak-localization interference sequences responsible for ERO. Monitoring the temporal decay of ERO, we exploit its quantum-coherent nature to quantify the decoherence rate of the atomic system.

摘要

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