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TZID:Europe/Paris
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BEGIN:VEVENT
UID:1-536@lptms.universite-paris-saclay.fr
DTSTART:20171107T110000Z
DTEND:20171107T121500Z
DTSTAMP:20171103T141713Z
URL:https://www.lptms.universite-paris-saclay.fr/seminars/seminaire-except
 ionnel-d-baillie/
SUMMARY:Séminaire du LPTMS: Danny Baillie - LPTMS\, salle 201\, 2ème éta
 ge\, Bât 100\, Campus d'Orsay - 7 Nov 17 11:00
DESCRIPTION:Dipolar droplets\nDanny Baillie (University of Otago\, New Zeal
 and)\nExperiments with Bose-Einstein condensates of dysprosium [1] and erb
 ium [2] atoms have observed the formation of dilute quantum gas droplets t
 hat can preserve their form\, even in the absence of any external confinem
 ent [3]. These droplets are stabilized by Lee-Huang-Yang (LHY) quantum flu
 ctuation corrections to meanfield theory [4]. We discuss the regimes in wh
 ich such self-bound droplet states are stable [5]\, and examine the proper
 ties of their collective excitations. Notably we observe that the elongate
 d filament-shaped droplets act as a quasi-one-dimensional waveguide along 
 which low angular momentum phonons propagate [6].\nReferences\n\n[1] H. Ka
 dau\, M. Schmitt\, M. Wenzel\, C. Wink\, T. Maier\, I. Ferrier-Barbut\, an
 d T. Pfau\, Nature 530\, 194 (2016).\n\n[2] L. Chomaz\, S. Baier\, D. Pett
 er\, M. J. Mark\, F. Wächtler\, L. Santos\, and F. Ferlaino\, Phys. Rev. 
 X 6\, 041039 (2016).\n\n[3] M. Schmitt\, M. Wenzel\, F. Böttcher\, I. Fer
 rier-Barbut\, and T. Pfau\, Nature 539\, 259 (2016).\n\n[4] T. D. Lee\, K.
  Huang\, and C. N. Yang\, Phys. Rev. 106\, 1135 (1957).\n\n[5] D. Baillie\
 , R. M. Wilson\, R. N. Bisset\, and P. B. Blakie\, Phys. Rev. A 94\, 02160
 2(R) (2016).\n\n[6] D. Baillie\, R. M. Wilson\, and P. B. Blakie\, arXiv:1
 703.07927.
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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