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TZID:Europe/Paris
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BEGIN:VEVENT
UID:1-468@lptms.universite-paris-saclay.fr
DTSTART:20170131T110000Z
DTEND:20170131T120000Z
DTSTAMP:20170120T114748Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lptm
 s-john-martin/
SUMMARY:Séminaire du LPTMS: John Martin - LPTMS\, salle 201\, 2ème étage
 \, Bât 100\, Campus d'Orsay - 31 Jan 17 11:00
DESCRIPTION:Cold atom superradiance\nJohn Martin (Université de Liège\, B
 elgique)\nIn my talk\, I will report on the derivation and resolution of a
  novel master equation governing the cooperative spontaneous emission from
  an ensemble of cold atoms [1]. Our master equation for the atomic interna
 l degrees of freedom incorporates the effects of the quantization of the a
 tomic center-of-mass motion. It provides a unifying picture of the consequ
 ences of recoil and indistinguishability of atoms beyond the Lamb-Dicke re
 gime\, both on their dissipative and conservative internal dynamics. I wil
 l discuss general expressions for the decay rates and dipole-dipole shifts
  entering our master equation. As an application of our formalism\, I will
  then investigate the consequences of indistinguishability of cold atoms o
 n two hallmarks of cooperative emission processes: Dicke super- and subrad
 iance [2].\nRéférences :\n\n	[1] F. Damanet\, D. Braun\, and J. Martin\,
  Master equation for collective spontaneous emission with quantized atomic
  motion\, Phys. Rev. A 93\, 022124 (2016) \;\nCooperative spontaneous emis
 sion from indistinguishable atoms in arbitrary motional quantum states\, i
 bid. 94\, 033838 (2016).\n	[2] R. H. Dicke\, Coherence in Spontaneous Radi
 ation Processes\, Phys. Rev. 93\, 99 (1954).\n
CATEGORIES:seminars
LOCATION:LPTMS\, salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay\, 15 
 Rue Georges Clemenceau\, Orsay\, 91405\, France
GEO:48.698185;2.181768
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=15 Rue Georges Clemenceau\,
  Orsay\, 91405\, France;X-APPLE-RADIUS=100;X-TITLE=LPTMS\, salle 201\, 2è
 me étage\, Bât 100\, Campus d'Orsay:geo:48.698185,2.181768
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