Soutenance HDR: Leonardo Mazza

Topological matter and out-of-equilibrium physics in cold-atom setups

Leonardo Mazza (LPTMS)

The study of ultra-cold gases is currently offering a new vision of many-body quantum physics. In this seminar I will briefly overview my recent contributions to the field, focusing on topological physics and out-of-equilibrium dynamics.

In the first part, motivated by the studies on the quantum Hall effect and Chern insulators with cold atoms, I will discuss my recent contributions on the fractional statistics of the quasiholes of several paradigmatic states, with a specific focus on Laughlin and Halperin wavefunctions. The goal is to show that it is possible to extract information on the statistics using only density-profile measurements and without resorting in any way to interference schemes.

In the second part of the talk I will discuss my contributions to the field of out-of-equilibrium dynamics of correlated quantum gases, focusing on the effect of two-body losses in one-dimensional setups. Motivated by recent experiments, I will show that losses can induced intriguing transient dynamics and even stabilize entangled stationary states. The strongly-dissipative limit, also known as quantum Zeno limit, lends itself to an insightful analytical description in terms of appropriate rate equations.

Jury : Isabelle Bouchoule (Institut d’Optique), Nigel R. Cooper (University of Cambridge), Mark O. Goerbig (LPS Orsay), Anna Minguzzi (LPMMC Grenoble), Sylvain Nascimbene (LKB, Collège de France), Tommaso Roscilde (ENS Lyon)

Date/Time : 08/04/2022 - 9:30 - 13:30

Location : Grand amphi, bâtiment Pascal n° 530