42 citations · 177 across the 13 of their papers we have counts for
13 papers
Symmetry Resolved Entanglement Entropy in a Non-Abelian Fractional Quantum Hall State
Mark J. Arildsen, Valentin Crépel, Nicolas Regnault +1
Symmetry-resolved entanglement entropy provides a powerful framework for probing the internal structure of quantum many-body states by decomposing entanglement into contributions f…
Site-polarized Mott phases competing with a correlated metal in twisted WSe
Siheon Ryee, Lennart Klebl, Gautam Rai +9
Twisted WSe hosts superconductivity, metal-insulator phase transitions, and field-controllable Fermi-liquid to non-Fermi-liquid transport properties. In this work, we use dynam…
Quantum-geometric dipole: a topological boost to flavor ferromagnetism in flat bands
Lei Chen, Sayed Ali Akbar Ghorashi, Jennifer Cano +1
Robust flavor-polarized phases are a striking hallmark of many flat-band moiré materials. In this work, we trace the origin of this spontaneous polarization to a lesser-known quant…
Twist-angle evolution of the intervalley-coherent antiferromagnet in twisted WSe
Daniel Muñoz-Segovia, Valentin Crépel, Raquel Queiroz +1
Recent experimental reports of correlated physics in twisted homobilayer WSe have spurred interest in the interplay of electronic interactions and topology in this system. Here…
Theory of intervalley-coherent AFM order and topological superconductivity in tWSe
Ammon Fischer, Lennart Klebl, Valentin Crépel +7
The recent observation of superconductivity in the vicinity of Fermi surface reconstructed insulating or metallic states has established twisted bilayers of WSe\textsubscript{2} as…
Anyon Superconductivity from Topological Criticality in a Hofstadter-Hubbard Model
Stefan Divic, Valentin Crépel, Tomohiro Soejima +4
We argue that the combination of strong repulsive interactions and high magnetic fields can generate electron pairing and superconductivity. Inspired by the large lattice constants…
Chiral Spin Liquid and Quantum Phase Transition in the Triangular Lattice Hofstadter-Hubbard Model
Stefan Divic, Tomohiro Soejima, Valentin Crépel +2
Recent advances in moiré engineering motivate the study of lattice models of strongly-correlated electrons subjected to substantial orbital magnetic flux. We analyze the triangular…
Probing the fractional quantum Hall phases in valley-layer locked bilayer MoS
Siwen Zhao, Jinqiang Huang, Valentin Crépel +16
Semiconducting transition-metal dichalcogenides (TMDs) exhibit high mobility, strong spin-orbit coupling, and large effective masses, which simultaneously leads to a rich wealth of…
Chiral model of twisted bilayer graphene realized in a monolayer
Valentin Crépel, Aaron Dunbrack, Daniele Guerci +2
We demonstrate that a single layer of graphene subject to a superlattice potential nearly commensurate to a supercell exactly maps to the chiral model of…
Chiral limit and origin of topological flat bands in twisted transition metal dichalcogenide homobilayers
Valentin Crépel, Nicolas Regnault, Raquel Queiroz
The observation of zero field fractional quantum Hall analogs in twisted transition metal dichalcogenides (TMDs) asks for a deeper understanding of what mechanisms lead to topologi…
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…
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…
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…