3 papers
cond-mat.mes-hall2021
Universal signatures of Dirac fermions in entanglement and charge fluctuations
Valentin Crépel, Anna Hackenbroich, Nicolas Regnault +1
We investigate the entanglement entropy (EE) and charge fluctuations in models where the low energy physics is governed by massless Dirac fermions. We focus on the response to flux…
cond-mat.str-el2020
Microscopic Study of the Coupled-Wire Construction and Plausible Realization in Spin-Dependent Optical Lattices
Valentin Crépel, Benoit Estienne, Nicolas Regnault
Coupled-wire constructions offer particularly simple and powerful models to capture the essence of strongly correlated topological phases of matter. They often rely on effective th…
cond-mat.str-el2019
Matrix Product State Description and Gaplessness of the Haldane-Rezayi State
V. Crépel, N. Regnault, B. Estienne
We derive an exact matrix product state representation of the Haldane-Rezayi state on both the cylinder and torus geometry. Our derivation is based on the description of the Haldan…