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DTSTART;TZID=Europe/Paris:20261012T100000
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UID:10000209-1791799200-1792069200@sfp-alpes.fr
SUMMARY:OLIMPICS 2026 : Physics and living systems
DESCRIPTION:We are pleased to announce the 2026 conference « Physics and living systems » of the OLIMPICS federation (CNRS\, UGA\, G-INP\, CEA). It will take place in the Bauges Massif (Lescheraines)\, from Monday\, October 12 at 10:00 am to Thursday\, October 15 at 1:00 pm. \nRegistrations and abstract submissions will be open from now until July 31th. \nThis event is intended to give early-career scientists the opportunity to present their work and build their network. Therefore\, we strongly encourage the participation of PhD students and PostDocs. Scientific talks will be complemented by off-topic talks\, free time for discussions and poster sessions. \nA shuttle service will be operated from Grenoble and Chambéry train stations to/from the conference venue at the beginning and end of the conference. \n  \nWe will have the pleasure of welcoming four guest speakers on each of the four major themes that make up our community : \n– Stéphanie Descroix (DR CNRS\, Institut Curie\, Paris) – Theme : Investigating the living world \n– Yanxia Hou-Broutin (DR CNRS\, SyMMES\, Grenoble) – Theme : Bio-inspired physics and engineering \n– Guillaume Salbreux (Prof. Université de Genève\, Department of Genetics and Evolution) Theme : Dynamics of living systems \n– Julien Gautrot (Prof. Univ. London\, Centre for Molecular Biochemical Engineering) Theme: Physical interactions \n  \nMore information on the conference venue\, registration\, access map\, registration fees\, and other practical information is available on our website : https://olimpics2026.sciencesconf.org \n_ \nContact : olimpics2026@sciencesconf.org
URL:https://sfp-alpes.fr/event/olimpics-2026-physics-and-living-systems/
LOCATION:L’Eau Vive – Géopark des Bauges\, Base de Loisirs de Lescheraines\, Lescheraines\, 73340\, France
CATEGORIES:Conférence,Evènements
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DTSTART;TZID=Europe/Paris:20261014T140000
DTEND;TZID=Europe/Paris:20261014T150000
DTSTAMP:20261009T130453Z
CREATED:20261009T130453Z
LAST-MODIFIED:20261009T130453Z
UID:10000301-1791986400-1791990000@sfp-alpes.fr
SUMMARY:Liuba GOSTEVA (LPMMC)
DESCRIPTION:Scaling regimes of the 1D Kuramoto-Sivashinsky equation\nRésumé : \nThe Kuramoto-Sivashinsky (KS) equation describes various phenomena exhibiting chaos and instabilities\, including flames\, reaction-diffusion processes\, and thin liquid film flows. It resembles the Kardar-Parisi-Zhang (KPZ) equation\, with the key difference being the negative « viscosity » in the KS equation. The KS equation is known to belong to the KPZ universality class: at large scales\, its statistical properties are governed by the KPZ fixed point\, characterized by the dynamical exponent $z=3/2$ and a known PDF of fluctuations. In this talk\, I will analyze the stochastic KS equation using the functional renormalization group (FRG). In this framework\, attractive fixed points of the FRG equation determine large-scale universal behavior\, while unstable fixed points govern small-scale universal behavior. I will show that the two-point correlation function exhibits\, besides the KPZ scaling at large scale\, another universal scaling regime at small scale\, with $z=1$. This scaling is very robust as it is intrinsic to the KS dynamics. It arises from the vanishing of the effective viscosity when evolving from its microscopic negative KS value\, to its macroscopic effective positive KPZ value. I will also present results from direct numerical simulations\, which confirm these findings. The talk is based on the following articles: 1 L. Gosteva\, D. Roy\, N. Wschebor\, and L. Canet\, arXiv:2605.23364 (2026). 2 L. Gosteva\, N. Wschebor\, and L. Canet\, arXiv:2607.15784 (2026). \n_ \nContact : pierre.nataf@lpmmc.cnrs.fr
URL:https://sfp-alpes.fr/event/liuba-gosteva-lpmmc/
LOCATION:LPMMC – salle Roger Maynard (G421)\, CNRS - LPMMC 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
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