Capturing magic angles in twisted bilayer graphene from information theory markers
Metadatos
Mostrar el registro completo del ítemEditorial
Elsevier
Fecha
2025-04Referencia bibliográfica
M. Calixto et al. Physica E: Low-dimensional Systems and Nanostructures 169 (2025) 116199. https://doi.org/10.1016/j.physe.2025.116199
Patrocinador
Spanish MICIU PID2022-138144NB-I00; Spanish MIU FPU19/06376; University of Granada; Polytechnic University of Cartagena, Spain; European Commission project C-QuENS (ID: 101135359); PASPA from DGAPA-UNAMResumen
Zero energy eigenstates ψ0(θ) of the twisted bilayer graphene Hamiltonian at the Dirac point show a high
sensitivity to the twist angle θ near the magic angles where the effective Fermi velocity vanishes. We use
information theory markers, like fidelity-susceptibility and entanglement entropy of the reduced density matrix
to the layer sector, to capture this quantum criticality of zero modes at magic twist angles.