3 papers
hep-th2026
Genuine multientropy, dihedral invariants and Lifshitz theory
Clément Berthière, Paul Gaudin
Multi-invariants are local-unitary invariants of state replicas introduced as potential probes of multipartite entanglement and correlations in quantum many-body systems. In this p…
cond-mat.str-el2026
Separability and entanglement of resonating valence-bond states
Gilles Parez, Clément Berthiere, William Witczak-Krempa
We investigate separability and entanglement of Rokhsar-Kivelson (RK) states and resonating valence-bond (RVB) states. These states play a prominent role in condensed matter physic…
cond-mat.str-el2025
Geometric expansion of fluctuations and average shadows
Clément Berthière, Benoit Estienne, Jean-Marie Stéphan +1
Fluctuations of observables provide unique insights into the nature of physical systems, and their study stands as a cornerstone of both theoretical and experimental science. Gener…