6 papers
Controlled Loop Expansion for Strained Twisted Bilayer Graphene
Eyal Keshet, Yaar Vituri, Erez Berg
We develop a controlled diagrammatic framework for periodic Anderson models,and apply it to heterostrained magic-angle twisted bilayer graphene (MATBG) at charge neutrality using t…
Controlled Loop Expansion for the Topological Heavy Fermion Model
Yaar Vituri, Erez Berg
We develop a controlled theoretical framework for the topological heavy fermion model relevant to magic-angle twisted bilayer graphene, where low density conduction electrons hybri…
Quantum Geometry Driven Crystallization: A Neural-Network Variational Monte Carlo Study
Agnes Valenti, Yaar Vituri, Yubo Yang +7
Wigner crystals are a paradigmatic form of interaction driven electronic order. A key open question is how Berry curvature and, more generally, quantum geometry reshape crystalliza…
Visualizing isospin magnetic texture and intervalley exchange interaction in rhombohedral tetralayer graphene
Nadav Auerbach, Surajit Dutta, Matan Uzan +13
The tunable band structure and nontrivial topology of multilayer rhombohedral graphene lead to a variety of correlated electronic states with isospin orders-meaning ordered states…
The Interacting Energy Bands of Magic Angle Twisted Bilayer Graphene Revealed by the Quantum Twisting Microscope
J. Xiao, A. Inbar, J. Birkbeck +6
Electron interactions in quantum materials fundamentally shape their energy bands and, with them, the material's most intriguing quantum phases. Magic angle twisted bilayer graphen…
Visualizing incommensurate inter-valley coherent states in rhombohedral trilayer graphene
Yiwen Liu, Ambikesh Gupta, Youngjoon Choi +13
ABC-stacked rhombohedral graphene multilayers exhibit a wide variety of electronic ground states characterized by broken isospin symmetry and superconductivity. Recently, indirect…