Laboratoire de Physique de l'Ecole Normale Supérieure

Universal random matrix behavior of a Fermionic quantum gas

Since its initial use by Wigner in describing heavy atom spectra, random matrix theory (RMT) has found applications and revealed universal laws in diverse physical contexts, from quantum field theory to disordered systems and wireless communications. A particularly compelling app...

Two-dimensional topological quantum chemistry and catalog of topological materials

Two-dimensional (2D) topological materials host symmetry-protected, disorder-robust edge states central to quantum technologies. Yet they remain scarce compared with their 3D counterparts. We adapted the topological quantum chemistry formalism to layer groups and studied the band...

2D theoretically twistable material database

The study of twisted two-dimensional (2D) materials, in which twisting layers create moiré superlattices, has created opportunities for investigating topological phases and strongly correlated physics. The broader potential of a seemingly infinite set of twistable 2D materials re...

Holographic two-point functions of heavy operators revisited

A bstract In this paper we investigate the holographic computation of the two-point functions of $$\frac{1}{2}$$ -BPS chiral primary operators with scaling dimensions ∆ ~ N or ∆ ~ N 2 in 𝒩 = 4 SU ( N ) SYM using Type IIB supergravity. First we consider giant graviton operators, r...

Predicting driving performance from resting-state EEG using explainable gradient boosting

Abstract Sleep deprivation substantially impairs driving performance, underscoring the need for Electroencephalography (EEG)-derived markers associated with driving-performance vulnerability under varying levels of sleepiness. In this study, resting-state EEG signals were recorde...