4 papers
Relativistic Mott transitions and finite-temperature effects of quantum criticality in Dirac semimetals
Mireia Tolosa-Simeón, Laura Classen, Michael M. Scherer
Gross-Neveu-Yukawa-type models such as the chiral Ising, chiral XY, and chiral Heisenberg models, serve as effective descriptions of two-dimensional Dirac semi-metals undergoing qu…
Kohn-Luttinger-like mechanism for unconventional charge density waves
Hannes Braun, Michael M. Scherer, Laura Classen
Interaction-induced charge orders with electronic origin occur as states of spontaneously broken symmetry in several materials platforms. An electronic mechanism for charge order r…
Angle-Tuned Gross-Neveu Quantum Criticality in Twisted Bilayer Graphene: A Quantum Monte Carlo Study
Cheng Huang, Nikolaos Parthenios, Maksim Ulybyshev +4
The fascinating quantum many-body states in twisted bilayber graphene (TBG) at magic angle, due to the interplay of Coulomb interactions and the quantum metrics of flat bands, have…
Mean-field analysis of a Hubbard interaction on Bernal Bilayer Graphene
Robin Scholle, Laura Classen
We perform unrestricted Hartree-Fock calculations on the 2D Hubbard model on a honeycomb and bilayer honeycomb lattice at both zero and finite temperatures. Finite size real space…