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Journal Articles Physical Review Letters Year : 2017

Return to the Origin as a Probe of Atomic Phase Coherence

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.
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Dates and versions

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

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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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