by
DrTony Jin(Department of Quantum Matter Physics, University of Geneva)
→
Asia/Shanghai
ONLINE
ONLINE
Description
Abstract
Non-equilibrium phenomena appear in every area of physics. Despite their ubiquity, formulating general principles to describe them remains one of the most important challenges in modern statistical physics.
In the recent decades, much progress has been made in classical statistical physics of driven diffusive system. The combined effort of providing systematic exact solutions to toy models and attempting to formulate general principles that govern them has culminated in the formulation of an unified framework called the macroscopic fluctuation theory.
For the quantum case, the situation is much less advanced, hence the need for simple, solvable, yet non trivial models that will help us grasp the general theory. I will present such model called the quantum symmetric simple exclusion process. After introducing it, I will show that the correlation functions in the stationary state follow a given set of combinatorial rules. From these rules I will demonstrate how one can compute the correlations recursively. The full distribution encodes for a rich behavior, entailing fluctuating quantum coherences which survive in the steady limit and satisfy a large-deviation principle.
Biography
My name is Tony Jin, I am currently in my third year of postdoc in the group of Thierry Giamarchi at the university of Geneva (started in 2019).
Before that, I was a PhD student at the École normale supérieure in Paris under the supervision of Denis Bernard (2016-2109).
Before that, I was doing master studies in theoretical physics at the École normale supérieure as well.
I also have an education in engineering as I went for 4 years in a Parisian engineering school called the ESPCI Paris.
