• 📜      01/12/2025

The second version of our recent paper "Irrational CFTs from coupled anyon chains with non-invertible symmetries?" will appear tomorrow. Thanks to the help of many friends, we were able to correct certain mistakes of the previous version. We now understand the full phase diagram of the two coupled anyon chains. We are also able to find the conformal phase corresponding to three copies of the tricritical Ising model coupled through the sigma' operator. 

• 📜      28/08/2025 

Our paper "Phase transitions and remnants of fractionalization at finite temperature in the triangular lattice quantum loop model" has been accepted for publication in PRL. I was in charge of the field theory part of the work. See also my recent talk "From the Cubic CFT to the Quantum Loop model".

• 📜      21/07/2025 

Our new paper titled "Irrational CFTs from coupled anyon chains with non-invertible symmetries?" will appear on Arxiv tomorrow. I will give a talk about this work next Thursday. 

• 🧳     21/7/2025 -10/8/2025 Sao Paulo

I will attend the Bootstrap2025 conference. 

• 🧳     4/5/2025 -11/5/2025 Hong Kong

I will visit Prof. Ziyang Meng's group at Hong Kong University and give a series of lectures (4 hours in total) on "Conformal field theory approach to (quantum) phase transitions II."

• ☕     25/4/2025 We are organizing the annual workshop of Seed Seminar à la Institut Pascal. 

We will have the pleasure to hear five talks by Nicolas Curien (Université Paris-Saclay, LMO), Boris Pioline (LPTHE, Sorbonne Université), Clément Delcamp (IHÉS), Balt van Rees (CPHT, École Polytechnique), and Stavros Garoufalidis (ICM-SUSTech, IHÉS). 

Please register on our website.

• ☕     7/4/2025 & 11/4/2025, 11:00-13:00, à la Salle de conférence Louis Michel, CPhT, École polytechnique

I will give two lectures on "An Introduction to Conformal Field Theory in 2 + 1 Dimensions".  

Abstract: In this series of lectures, I will explore conformal field theories (CFTs) in 2+1 dimensions and the renormalization group flows connecting them. I will begin by examining scalar CFTs, which correspond to Wilson-Fisher fixed points in 4-ϵ dimensions, focusing on their stability properties from a modern perspective. Following this, I will discuss 2+1-dimensional gauge theories with bosonic or fermionic matter. If time permits, I will also discuss the connections between these CFTs and quantum/statistical phase transitions.

Handwritten lecture notes can be downloaded here.

• ☕     12/02/2025 

Today we organized the "kick-off of the seed seminar series" at Institut Henri Poincaré. The seminar series aims to bring together physicists and mathematicians, giving young researchers a stage to present their work. Please subscribe to our mailing list on our website.

• 📜      31/01/2024 

Our paper "Ultraviolet-Complete Local Field Theory of Persistent Symmetry Breaking in 2+1 Dimensions" is selected as the "Editor's suggestion" of PRL, and is featured on the cover of PRL Volume 134, Issue 4.  

• 📜      28/01/2024 

The 2nd version of my lecture note "Scalar Conformal Field Theories from Lattice Systems" is posted on Arxiv. New sections on "how to classify all the phases of a Landau theory using the computer algebra system GAP" and "the fully packed quantum loop model on the triangular lattice " are updated.

• ☕     28/01/2025 

I will give a Zoom talk for the Thermal Seminars. Please register on the website to get the Zoom link.

• ☕     21/01/2025 

I gave a talk for the Department of Physics at Western Lake University. (The talk is in 中文) [Recordings]

• 📜      16/01/2024 

Today, the Quanta Magzine covered the recent developments on "unmeltable order" (persistent order), and our work was briefly mentioned.

• 📜      03/12/2024 

New work on the finite temperature phase diagram of the Quantum Loop model posted on Arxiv

• ☕     03/10/2024 

I will give a talk in Les Rencontres théoriciennes.

• 📜      18/09/2024 

New work on persistent order and inverted phase diagram posted on Arxiv

• 🧳 19/09/2024 Annecy

I will attend the mini-workshop on S-matrix bootstrap and give a talk.

• 🧳 16/09/2024 to 18/09/2024, Dijon

I will visit the Institut de Mathématiques de Bourgogne and give a talk at the Mathematical-Physics seminar.

• 🧳 07/07/2024 to 21/07/2024, Madrid

Travel to Madrid to attend the Bootstrap 2024.

• 📜      25/06/2024 

New work on "Local/Short-range conformal field theories from long-range perturbation theory" posted on Arxiv

• 🧳 21/05/2024 to 23/05/2024, Bochum

I will visit the Ruhr-University Bochum physics department and give a seminar talk