Return to the Origin as a Probe of Atomic Phase Coherence
Disordered Systems and Neural Networks
2017-05-10 v1 Quantum Physics
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 and explain it 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.
Cite
@article{arxiv.1606.07237,
title = {Return to the Origin as a Probe of Atomic Phase Coherence},
author = {Clément Hainaut and Isam Manai and Radu Chicireanu and Jean-François Clément and Samir Zemmouri and Jean Claude Garreau and Pascal Szriftgiser and Gabriel Lemarié and Nicolas Cherroret and Dominique Delande},
journal= {arXiv preprint arXiv:1606.07237},
year = {2017}
}