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UID:0-949@lptms.universite-paris-saclay.fr
DTSTART;TZID=Europe/Paris:20240308T134500
DTEND;TZID=Europe/Paris:20240308T144500
DTSTAMP:20240226T095601Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/lptms-quantum-sem
 inar-lea-dubois-laboratoire-charles-fabry/
SUMMARY:LPTMS Quantum Seminar: ​​​​​​​Léa Dubois (Laboratoir
 e Charles Fabry) - Salle des séminaires du FAST et du LPTMS\, bâtiment P
 ascal n°530 - 8 Mar 24 13:45
DESCRIPTION:Probing the local rapidity distribution of a 1D Bose gasAfter r
 elaxation\, an integrable quantum system\, in particular a one-dimensional
  gas of bosons\, is characterized by the rapidities distribution\, a quant
 ity preserved throughout the dynamics. The rapidities distribution is noth
 ing else than the asymptotic momentum distribution of particles after a on
 e-dimensional expansion of the system. This definition is directly linked 
 to an experimental procedure allowing to access this quantity. We can also
  study the different stages of the expansion by using the Generalized Hydr
 oDynamics theory\, an emerging hydrodynamic theory applicable to quantum i
 ntegrable systems.  In our experiment\, 87Rb atoms are trapped by an atom
  chip to reach the one-dimensional regime. A spatial selection tool has be
 en integrated in our setup allowing to locally probe the rapidity  distri
 bution by performing one-dimensional expansions of selected parts of the c
 loud. I will present the comparisons between the experimental expansions w
 ith the predicted profiles by Generalized HydroDynamics [1]. I will also p
 resent you some preliminary results about new protocols that we implemente
 d thanks to the spatial selection tool in order to test the Generalized Hy
 drodynamics theory with initial out-of equilibrium 1D Bose gas. [1] L. Du
 bois\, G. Thémèze\, J. Dubail and I. Bouchoule\, arXiv: 2312.15344
CATEGORIES:seminars
LOCATION:Salle des séminaires du FAST et du LPTMS\, bâtiment Pascal n°53
 0\, rue André Riviere\, Orsay\, 91405\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=rue André Riviere\, Orsay\
 , 91405\, France;X-APPLE-RADIUS=100;X-TITLE=Salle des séminaires du FAST 
 et du LPTMS\, bâtiment Pascal n°530:geo:0,0
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DTSTART:20231029T020000
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