António finished his PhD in Porto University in the summer of 2022 and then did a two year postdoc in DESY (Hamburg) before joining ENS Paris and FUNBOOTS in the fall of 2024. 

His main research goal is to understand the space of Quantum Field Theories, by whatever means necessary, but with an emphasis on the bootstrap approach. He has worked on bootstrapping conformal field theories, S-matrices and RG flows, as well as on constructing new classes of 2d CFTs using perturbation theory. He is broadly interested in other non-perturbative methods to study QFTs, as well as in Quantum Gravity, mostly in the context of the AdS/CFT correspondence.

Bastien graduated from École Normale Supérieure in Lyon. After some internships in Berlin and in Milan, he went on to Paris and started his PhD in 2024.

His research interest is mainly Conformal Field Theory, more precisely 

• in the presence of defects (ε-expansion, tilt/displacement sum rules, analytical bootstrap) 

• in the context of holography (form factors, locality)

Julius completed his PhD at King’s College London under the supervision of Nikolay Gromov in 2021. Since then he has had brief stints at the Euler International Mathematical Institute - Saint Petersburg, King’s College London and Harish-Chandra Research Institute - Allahabad, before joining FUNBOOTS at ENS Paris in October 2024. 

He is interested in developing and using non-perturbative methods to obtain exact results in string theory and quantum field theory. These include integrability, various bootstrap approaches and combinations thereof. 

Noé joined the group as a PhD student in September 2023. His main focus is on 1D conformal bootstrap and its applications, such as QFT2/CFT1. He also has a particular interest for 2D QFT and integrability. Nevertheless, he says that he is always eager to learn about new topics, as he is still a student! He deals with both analytics and numerics. 

Up until now, he has written one bootstrap-related article titled "Solving 1D crossing and QFT2/CFT1" (https://arxiv.org/abs/2503.22798) with Miguel F. Paulos and Kausik Ghosh. He is currently working on multiple projects, including extrapolating the methods developed in 2503.22798 to more complicated setups. Another project focuses finding new non trivial fixed points of coupled unitary minimal models leading to irrational compacts 2D CFTs.

Philine obtained her BSc and MSc from the University of Amsterdam, the Netherlands, and then did a PhD at the Deutsches Elektronen-Synchrotron (DESY) in Hamburg, Germany. In 2023, she started a postdoc at the École Normale Supérieure in Paris, France, and joined the FunBootS research group.

Her interests focus on defects in Conformal Field Theories (CFTs) and nonlocal CFTs, which she studies using both perturbative (weak-coupling expansion) and nonperturbative (conformal bootstrap) techniques.