93 citations · 308 across the 22 of their papers we have counts for
8 papers · 1 filter
Kekulé spirals and charge transfer cascades in twisted symmetric trilayer graphene
Ziwei Wang, Yves H. Kwan, Glenn Wagner +3
We study the phase diagram of magic-angle twisted symmetric trilayer graphene in the presence of uniaxial heterostrain and interlayer displacement field. For experimentally reasona…
Itinerant magnetism in the triangular lattice Hubbard model at half-doping: Application to twisted transition-metal dichalcogenides
Yuchi He, Roman Rausch, Matthias Peschke +4
We use unrestricted Hartree-Fock, density matrix renormalization group, and variational projected entangled pair state calculations to investigate the ground state phase diagram of…
Coulomb-driven band unflattening suppresses -phonon pairing in moiré graphene
Glenn Wagner, Yves H. Kwan, Nick Bultinck +2
It is a matter of current debate whether the gate-tunable superconductivity in twisted bilayer graphene is phonon-mediated or arises from electron-electron interactions. The recent…
Supersymmetry on the honeycomb lattice: resonating charge stripes, superfrustration, and domain walls
Patrick H. Wilhelm, Yves H. Kwan, Andreas M. Läuchli +1
We study a model of spinless fermions on the honeycomb lattice with nearest-neighbor exclusion and extended repulsive interactions that exhibits `lattice supersymmetry' [P. Fendley…
Minimal Hubbard models of maximal Hilbert space fragmentation
Yves H. Kwan, Patrick H. Wilhelm, Sounak Biswas +1
We show that Hubbard models with nearest-neighbor hopping and a nearest-neighbor hardcore constraint exhibit `maximal' Hilbert space fragmentation in many lattices of arbitrary dim…
Electron-phonon coupling and competing Kekulé orders in twisted bilayer graphene
Yves H. Kwan, Glenn Wagner, Nick Bultinck +3
Recent scanning tunneling microscopy experiments [K.P. Nuckolls et al., arXiv:2303.00024] have revealed the ubiquity of Kekulé charge-density wave order in magic-angle twisted bila…
Superconductivity from repulsive interactions in Bernal-stacked bilayer graphene
Glenn Wagner, Yves H. Kwan, Nick Bultinck +2
A striking series of experiments have observed superconductivity in Bernal-stacked bilayer graphene (BBG) when the energy bands are flattened by applying an electrical displacement…
Discrete scale invariant fixed point in a quasiperiodic classical dimer model
Sounak Biswas, S. A. Parameswaran
We study close-packed dimers on the quasiperiodic Ammann-Beenker (AB) graph, that was recently shown to have the unusual feature that hard-core dimer constraints are exactly reprod…