Ramsey-like measurement of the decoherence rate between Zeeman sub-levels

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dc.creatorShuker, M.
dc.creatorFirstenberg, O.
dc.creatorSagi, Y.
dc.creatorBen-kish, A.
dc.creatorDavidson, N.
dc.creatorRon, A.
dc.date2008-07-19
dc.date.accessioned2026-07-07T12:11:49Z
dc.date.available2026-07-07T12:11:49Z
dc.descriptionTwo-photon processes that involve different sub-levels of the ground state of an atom, are highly sensitive to depopulation and decoherence within the ground state. For example, the spectral width of electromagnetically induced transparency resonances in $Λ-$type system, are strongly affected by the ground state depopulation and decoherence rates. We present a direct measurement of decay rates between hyperfine and Zeeman sub-levels in the ground state of $^{87}$Rb vapor. Similar to the relaxation-in-the-dark technique, pumping lasers are used to pre-align the atomic vapor in a well defined quantum state. The free propagation of the atomic state is monitored using a Ramsey-like method. Coherence times in the range 1-10 ms were measured for room temperature atomic vapor. In the range of the experimental parameters used in this study, the dominant process inducing Zeeman decoherence is the spin-exchange collisions between rubidium atoms.
dc.description7 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/0807.3110
dc.identifierhttp://arxiv.org/abs/0807.3110
dc.identifierPhys. Rev. A 78, 063818 (2008)
dc.identifierdoi:10.1103/PhysRevA.78.063818
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/210344
dc.subjectQuantum Physics
dc.titleRamsey-like measurement of the decoherence rate between Zeeman sub-levels
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