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UID:0-1115@lptms.universite-paris-saclay.fr
DTSTART;TZID=Europe/Paris:20260529T110000
DTEND;TZID=Europe/Paris:20260529T120000
DTSTAMP:20260521T093250Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/physics-biology-i
 nterface-seminar-mathis-gueneau/
SUMMARY:Physics-Biology Interface seminar: Mathis Guéneau - Moyen Amphi\, 
 Building 510\, Université Paris-Saclay Orsay - 29 Mai 26 11:00
DESCRIPTION:Spatiotemporal Characterization of Active Dynamics in Channels:
  Theory and Experiments\nMathis Guéneau (MPIPKS Dresden)\n&nbsp\;\nSwimmi
 ng microorganisms often live in confined\, complex environments\, where th
 ey transition between bulk and near-surface dynamics. Their dynamics can b
 e quantified in terms of first-passage statistics. In this talk\, I will f
 irst consider run-and-tumble bacteria confined in a channel. Combining the
 oretical predictions based on a renewal framework with experimental observ
 ations of Escherichia coli\, we study the statistics of the time required\
 , after leaving one wall\, to encounter either wall. I will discuss how in
 corporating heterogeneity in tumbling rates or non-exponential run-duratio
 n distributions affects the survival probability.\nIn the second part of t
 he talk\, I will consider active Brownian dynamics between two walls. Usin
 g a systematic expansion\, we compute first-passage properties. Exploiting
  Siegmund duality\, we infer the corresponding spatial properties for acti
 ve Brownian particles confined between hard walls and reveal a transition 
 towards a wall-accumulated state\, reminiscent of experimental observation
 s.\n\nCollaborators: Yanis Baouche (MPI PKS Dresden)\, Yundon Jeong (Leipz
 ig)\, Christina Kurzthaler (MPI PKS Dresden)\, Katja M. Taute (Leipzig).
CATEGORIES:physbio,seminars
LOCATION:Moyen Amphi\, Building 510\, Université Paris-Saclay Orsay\, 15 R
 ue Georges Clemenceau\, orsay\, France
GEO:48.698187;2.181768
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=15 Rue Georges Clemenceau\,
  orsay\, France;X-APPLE-RADIUS=100;X-TITLE=Moyen Amphi\, Building 510\, Un
 iversité Paris-Saclay Orsay:geo:48.698187,2.181768
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DTSTART:20260329T030000
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