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Volker Betz: The effective mass of the polaron

Salle 318 (IMB) Salle 318 (IMB)

The polaron describes a charged particle moving in a polarizable medium. Due to the interaction with the medium, the particle appears to be heavier that it would be outside the medium. This

COLLOQUIUM David Krejčiřík « Is the optimal rectangle a square? « 

Salle René Baire (IMB) Salle René Baire (IMB)

Speakers: David Krejčiřík (Czech Technical University in Prague)We give a light talk on optimality of shapes in geometry and physics. First, we recollect classical geometric results that the disk has the largest area (respectively,

Edward Mazenc: Strings From Feynman Diagrams

Salle 318 (IMB) Salle 318 (IMB)

How are bulk strings related to boundary Feynman diagrams? I will give an overview of my work with Rajesh Gopakumar on deriving the closed string dual to the simplest possible gauge theory,

Flash Talk session.

Please prepare a 5-minute talk on a topic of your choice. This could be related to your research, an object you are passionate about, or even a theorem statement.This is a wonderful

Lukas Müller: Topological defects

Salle 318 (IMB) Salle 318 (IMB)

Recently, the study of higher categories of topological defects in quantum field theory has gained significant attention due to their connection to categorical symmetries. These higher categories exhibit noteworthy additional structures, depending

Journée scientifique de l’IMB

amphi Bernard (UFR Sciences et Techniques)

Lundi 3 juin 2024 de 10h à 17h aura lieu la traditionnelle Journée scientifique de l’IMBProgramme de la journée

Yu Hamada: Knotted comic strings in particle physics models

Salle 318 (IMB) Salle 318 (IMB)

Cosmic strings (or vortex strings) are topological defects arising when U(1) symmetry is spontaneously broken in quantum field theories. In three-dimensional relativistic systems, loops of cosmic strings are known to be unstable

Antonino Flachi: Revisiting the Quantum Vacuum

Salle 318 (IMB) Salle 318 (IMB)

A fundamental prediction of quantum physics is the existence of random fluctuations everywhere in vacuum. This is one of the most remarkable and central ideas in quantum field theory which manifests itself


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