Comparative study of the transient evolution of Hanle EIT/EIA resonances

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dc.creatorValente, P.
dc.creatorFailache, H.
dc.creatorLezama, A.
dc.date2001-07-02
dc.date.accessioned2026-07-07T06:02:23Z
dc.date.available2026-07-07T06:02:23Z
dc.descriptionThe temporal evolutions of coherent resonances corresponding to electromagnetically induced transparency (EIT) and absorption (EIA) were observed in a Hanle absorption experiment carried on the $D_{2}$ lines of $% ^{87}$Rb vapor by suddenly turning the magnetic field on or off. The main features of the experimental observations are well reproduced by a theoretical model based on Bloch equation where the atomic level degeneracy has been fully accounted for. Similar (opposite phase) evolutions were observed at low optical field intensities for Hanle/EIT or Hanle/EIA resonances. Unlike the Hanle/EIA\ transients which are increasingly shorter for driving field intensities approaching saturation, the $B\neq 0$ transient of the Hanle/EIT signal at large driving field intensities present a long decay time approaching the atomic transit time. Such counterintuitive behavior is interpreted as a consequence of the Zeno effect.
dc.description8 pages, 8 figures, submitted to Phys. Rev. A
dc.identifierhttps://arxiv.org/abs/quant-ph/0107007
dc.identifierhttp://arxiv.org/abs/quant-ph/0107007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/89581
dc.subjectQuantum Physics
dc.titleComparative study of the transient evolution of Hanle EIT/EIA resonances
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