Institut de Physique Théorique
Direction de la Recherche Fondamentale  -  Saclay
UMR 3681 - INP
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Thursday, May 05, 2016

Welcome to IPhT



Monday, May 09, 2016

11h00 Séminaire de physique mathématique

Séminaire de physique mathématique

Salle Claude Itzykson, Bât. 774 Orme des Merisiers

Michael Shapiro

Tuesday, May 10, 2016

11h00 Séminaire général de l'IPhT

Séminaire général de l'IPhT

Salle Claude Itzykson, Bât. 774 Orme des Merisiers

David Andelman

Friday, May 13, 2016

10h00 Cours de physique théorique de Saclay

Cours de physique théorique de Saclay

Salle Claude Itzykson, Bât. 774 Orme des Merisiers

Didina Serban and Dmytro Volin

The Institut de Physique Théorique (IPhT) is a laboratory of fundamental research, located in Saclay, about 20 km south-west of Paris.

The research performed at the IPhT aims at better understanding the laws which govern our universe and its organisation. It encompasses most of the great subjects of modern theoretical physics:

The IPhT comprises about fifty permanent physicists (2/3 CEA, 1/3 CNRS), about thirty PhD students and postdocs, assisted by a support staff of about ten people. The IPhT also hosts permanently many short term visitors.


Catherine Pépin is awarded an Advanced Grant from the European Research Council   


Catherine Pépin, permanent physicist at IPhT, has just been awarded a prestigious Advanced Grant from the European Research Council. This grant will enable her tu pursue, during five years, the exploration of charge orders and the SU(2) symmetry for understanding the phase diagram of cuprate superconductors. Congratulations to Catherine ! 

M. Bauer, 2016-04-14


A Field Theory for String Theories ?   


Since strings are one-dimensional objects, they have richer dynamics than point particles. There are many indications that this richness can be captured by a "double field theory", which is a field theory in a double-dimensional space. One of the stringy features that suggests this are winding states:  modes where strings have a quantized wrapping number around compact cycles of the space, the simplest yet rich case being that of a circle. Winding modes have a mass proportional to the radius of the circle, while momentum states have a mass proportional to the inverse of the radius. There is a symmetry (T-duality) that interchanges these states while inverting the size of the circle. These two modes are nothing else than the harmonics of the doubled space. However, in order to make the double field theory consistent, a constraint is imposed, such that fields are independent of the T-dual coordinates, and no winding modes are allowed.
Winding modes were introduced in the formalism for ...

More »

F. David, 2016-03-18


Les faits marquants et les sites de la DRF sont en ligne   


Les sites et derniers faits marquants de la Direction de la Recherche Fondamentale du CEA  sont à présent disponibles en ligne.

Faits marquants et actualités de la DRF:


Intranet du CEA:

Sites de la DRF:


Intranet du CEA:

E. De-laborderie, 2016-02-15


From theoretical physics to artificial intelligence

Devil staircases in dimer models

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