Comment on 'Inverse Doppler shift and control field as coherence generators for the stability in superluminal light'

Autor: Bernard Ségard, Bruno Macke

Publikováno v: Physical Review A
Physical Review A, American Physical Society, 2019, 99 (4), ⟨10.1103/PhysRevA.99.047801⟩
Physical Review A : Atomic, molecular, and optical physics [1990-2015]
Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2019, 99 (4), ⟨10.1103/PhysRevA.99.047801⟩

International audience; In their study of inverse Doppler shift and superluminal light [Phys. Rev. A 91, 053807 (2015)], Ghafoor et al. consider a three-level atomic arrangement with transitions in the optical domain. In fact, the values they give to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::893c1ca901c1eeec50a0e6dfc6d528ff
https://hal.archives-ouvertes.fr/hal-02111063

On-resonance material fast light

Autor: Bernard Ségard, Bruno Macke

Publikováno v: Physical Review A
Physical Review A, American Physical Society, 2018, 97 (6), ⟨10.1103/PhysRevA.97.063830⟩
Physical Review A : Atomic, molecular, and optical physics [1990-2015]
Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2018, 97 (6), ⟨10.1103/PhysRevA.97.063830⟩

International audience; We theoretically revisit the problem of the propagation of coherent light pulses through a linear medium when the carrier frequency of the pulses coincides with the minimum of a narrow dip in the medium transmission. Consideri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bf6c52437ba5ee8b558dbeb93e2d715
https://hal.archives-ouvertes.fr/hal-01768562

Simultaneous slow and fast light involving the Faraday effect

Autor: Bernard Ségard, Bruno Macke

Publikováno v: Physical Review A : Atomic, molecular, and optical physics [1990-2015]
Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2016, 94, pp.043801. ⟨10.1103/PhysRevA.94.043801⟩
Physical Review A
Physical Review A, American Physical Society, 2016, 94, pp.043801. ⟨10.1103/PhysRevA.94.043801⟩

We theoretically study the linear transmission of linearly polarized light pulses in an ensemble of cold atoms submitted to a static magnetic field parallel to the direction of propagation. The carrier frequency of the incident pulses coincides with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a43935227dc9c8cada482f6cdec82634
https://hal.science/hal-01325677v2/file/FaradayVFinale.pdf

Comment on 'Gain-assisted superluminal light propagation through a Bose-Einstein condensate cavity system'

Autor: Bernard Ségard, Bruno Macke

Publikováno v: The European Physical Journal D : Atomic, molecular, optical and plasma physics
The European Physical Journal D : Atomic, molecular, optical and plasma physics, EDP Sciences, 2016, 70, pp.193. ⟨10.1140/epjd/e2016-70210-x⟩
The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2016, 70, pp.193. ⟨10.1140/epjd/e2016-70210-x⟩

International audience; In a recent theoretical article [Eur. Phys. J. D 70, 1 (2016)], Kazemi et al. claim to have demonstrated superluminal light transmission in an optomechanical system where a Bose-Einstein condensate serves as the mechanical osc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87ae3a71dd6fe3a7cf544562efc1f3da

Dynamical hysteresis of bistable systems: from the deterministic to the fluctuation-dominated case

Autor: N.E. Fettouhi, Bernard Ségard, Jaouad Zemmouri, Bruno Macke

Publikováno v: Physics Letters A. 204:251-254

The effect of fluctuations on the scaling law in dynamical hysteresis is examined. For moderate values of the sweeping frequency (Ω) and amplitude A, experiments show that the evolution of the loop area scales as (AΩ) s , the exponent s equal to 2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::64168cc6035ec420b8b7ad4bfafe976c
https://doi.org/10.1016/0375-9601(95)00489-p