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Article Dans Une Revue Physical Review Letters Année : 2017

Return to the Origin as a Probe of Atomic Phase Coherence

Gabriel Lemarié
Nicolas Cherroret
Dominique Delande

Résumé

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.
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Dates et versions

hal-01335469 , version 1 (21-06-2016)

Identifiants

Citer

Clément Hainaut, Isam Manai, Radu Chicireanu, Jean-François Clément, Samir Zemmouri, et al.. Return to the Origin as a Probe of Atomic Phase Coherence. Physical Review Letters, 2017, 118 (5), pp.184101. ⟨10.1103/PhysRevLett.118.184101⟩. ⟨hal-01335469⟩
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