Schedule

Find the upcoming seminars below.

TQM seminar #16 : December 8, 2pm (INSP great hall, towers 22-23, 3rd floor, room 317)

Nicolas Dupuis (LPTMC, CNRS & Sorbonne Université, Paris)

One-dimensional disordered Bose fluid: from Bose glass to Mott glass

In a one-dimensional Bose fluid, disorder can induce a quantum phase transition between a superfluid phase (Luttinger liquid) and a localized phase (Bose glass). Using bosonization, the replica method and a nonperturbative functional renormalization-group approach, we find that the Bose-glass phase is described by a fully attractive strong-disorder fixed point characterized by a singular disorder correlator whose functional dependence assumes a cuspy form. This reveals the glassy properties (pinning, “shocks” and “avalanches”) due to the existence of metastable states, as well as the crucial role of quantum tunneling between different metastable configurations. We also show that long-range interactions can stabilize a Mott glass, i.e. a state intermediate between a Mott insulator and a Bose glass, and characterized by a vanishing compressibility and a gapless optical conductivity.


TQM seminar #17 : January 5 2023, 2pm (LPTHE library, towers 13-14, 4th floor)

Kareljan Schoutens (University of Amsterdam)

Kink Dynamics and Quantum Simulation of Supersymmetric Lattice Hamiltonians (provisoire)


TQM seminar #18 : January 19 2023, 2pm (INSP great hall, towers 22-23, 3rd floor, room 317)

Karim Noui (ICJLab, Orsay)

TBA


TQM seminar #19 : February 2 2023, 2pm (INSP great hall, towers 22-23, 3rd floor, room 317)

Anne Anthore (C2N Palaiseau & Université Paris Cité)

TBA


TQM seminar #20 : April 6 2023, 2pm (INSP great hall, towers 22-23, 3rd floor, room 317 ???)

François Dubin (INSP, Sorbonne Université, Paris)

TBA


TQM seminar #21 : May 11 2023, 2pm (INSP great hall, towers 22-23, 3rd floor, room 317 ???)

Aurélien Schmitt (LPENS, Ecole Normale Supérieure, Paris)

Klein-Schwinger effect in graphene (provisoire)