In this seminar I will discuss the physics of interacting bosons on a ring. I will first consider the stability of metastable current states, in a presence of a localized barrier. In particular I will show that for large barriers a universal dynamics emerges that involves dispersive shock waves, at all interaction strengths, that can be understood using the generalized hydrodynamics framework. I will then focus on the weak barrier regime and show that the dynamics is non-universal and involves in the mean-field regime thermally activated grey solitons. In a second part I will introduce the tools of the inverse scattering transform to study far from equilibrium states and discuss how they can be adapted to the ring geometry. Finally I will conclude by pointing out a few perspectives in the study of non-integrable systems and soliton gases.
De Mathias Albert
De Jean-Sébastien Caux
De Federico Tomás Benito Pérez
De David Hernandez
De Yura Rubo
De Ramasubramanian Chitra
De Tomaž Prosen
De Tomaž Prosen
De Tomaž Prosen
De Zouhaïr Mouayn
De Romain Dubessy
De Serguei Brazovski
De Serguei Brazovski
De Pierre Pujol
De Zvi Ovadyahu
De Andrea Richaud
De Janine Splettstoesser
De Alberto Biella
De Thierry Giamarchi
De Albert Schwarz
De Albert Schwarz
De Clément Delcamp
De Clément Delcamp
De Clément Delcamp
De Stephen Coombes , Peter Liddle
De Victor Kleptsyn
De François-Xavier Vialard
