Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

The SEMPARIS seminar webserver hosts annoucements of all seminars taking place in Paris area, in all topics of physics, mathematics and computer science. It allows registered users to receive a selection of announcements by email on a daily or weekly basis, and offers the possibility to archive PDF or Powerpoint files, making it available to the scientific community.   [ More information ]


[Previous 30 ] Upcoming Seminars
[ scheduler view ]

Wednesday 8 December 2021, 14:30 at LPENS, L367 FORUM-ENS (Forum de Physique Statistique @ ENS) cond-mat.stat-mech
Varda Faghir Hagh ( The University of Chicago ) Free-then-freeze: transient learning degrees of freedom for introducing function in materials
Abstract: Many protocols used in material design and training have a common theme: they introduce new “learning’’ degrees of freedom, often by relaxing away existing constraints, and then evolve these degrees of freedom based on a rule that leads the material to a desired state at which point these learning degrees of freedom are frozen out. Using this conceptual framework, we first introduce and subsequently remove different sets of degrees of freedom from the energy minimization process of athermal particle packings. By doing so, we are able to create stable jammed packings that exist in exceptionally deep energy minima marked by the absence of low-frequency quasilocalized modes; this added stability persists in the thermodynamic limit. We show that the inclusion of particle radii as learning degrees of freedom leads to deeper and much more stable minima than does the inclusion of particle stiffnesses. This is because particle radii couple to the jamming transition whereas stiffnesses do not. Thus different choices for the learning degrees of freedom can lead to very different training outcomes.

Thursday 9 December 2021, 11:00 at LPTHE, bibliothèque du LPTHE, tour 13-14, 4eme étage SEM-DARBOUX (Séminaire Darboux - physique théorique et mathématiques) hep-th|math.AG
Pierrick Bousseau ( Laboraoire de Mathématiques d'Orsay ) TBA
Abstract: (based on 2109.13323 )

Monday 13 December 2021, 13:30 at LPENS, Salle Djebar - 29 rue d'Ulm LPENS-MDQ (Séminaire Matériaux et Dispositifs Quantiques du LPENS) cond-mat
Anaïs Dréau ( Laboratoire Charles Coulomb, L2C ) TBA

Tuesday 14 December 2021, 14:00 at APC, seminar room 483A, contact roperpol@apc.in2p3.fr for Zoom meeting details APC-TH (Seminar of the theory group of APC) gr-qc
Llorenç Espinosa Portales ( UAM ) TBA

Tuesday 11 January 2022, 17:15 at DPT-PHYS-ENS, Amphi Jaurès - Ecole normale supérieure 29 rue d'Ulm 75005 PARIS COLLOQUIUM-ENS (Colloquium of the Physics Department of ENS) physics
Bernard Plaçais ( LPENS - CNRS ) TBA
Abstract: TBA

Monday 17 January 2022, 13:30 at LPENS, TBA LPENS-MDQ (Séminaire Matériaux et Dispositifs Quantiques du LPENS) cond-mat
Nicolas Roch ( Institut Néel, Grenoble ) TBA

Tuesday 18 January 2022, 17:15 at DPT-PHYS-ENS, Amphi Jaurès - Ecole normale supérieure 29 rue d'Ulm 75005 PARIS COLLOQUIUM-ENS (Colloquium of the Physics Department of ENS) physics
Marc Mézard ( LPENS - CNRS ) TBA
Abstract: TBA

Monday 31 January 2022, 13:30 at LPENS, TBA LPENS-MDQ (Séminaire Matériaux et Dispositifs Quantiques du LPENS) cond-mat
François Dubin ( Institut des Nansciences de Paris, INSP ) TBA

Tuesday 8 February 2022, 17:15 at DPT-PHYS-ENS, Amphi Jaurès - Ecole normale supérieure 29 rue d'Ulm 75005 PARIS COLLOQUIUM-ENS (Colloquium of the Physics Department of ENS) physics
Matteo Barsuglia ( APC - CNRS ) TBA

Monday 14 March 2022, 13:30 at LPENS, TBA LPENS-MDQ (Séminaire Matériaux et Dispositifs Quantiques du LPENS) cond-mat
Rebeca Ribeiro ( Centre de Nanosciences et de Nanotechnologies, C2N ) TBA

seminars from series at institute
in subject with field matching

[ Postscript Poster Aide | PDF Poster Aide | RSS Thread | ICal Format Aide ]

You are invited to subscribe to SEMPARIS mailing lists in order to receive selected announcements by email.

[ Annonces ]    [ Abonnements ]    [ Archive ]    [ Aide ]    [ ]
[ English version ]