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110 papers · 1 filter
Multi-Q spin-valley order in twisted WSe2
Arthur Bril, Nai Chao Hu, Nick Bultinck
We report on a study of the interacting phase diagram of -twisted WSe at moiré hole filling , in which we find previously-overlooked types of magnetism. Specif…
Constraints from anti-unitary symmetries on phase diagrams of sign problem-free models
Xu Zhang, Nick Bultinck
A powerful way to guarantee the absence of a sign problem in determinantal quantum Monte Carlo simulations is imposing a particular type of anti-unitary symmetries. It is shown tha…
Quantitative Description of Strongly Correlated Materials by Combining Downfolding Techniques and Tensor Networks
Daan Vrancken, Simon Ganne, Daan Verraes +5
We present a high-accuracy procedure for electronic structure calculations of strongly correlated materials. To address limitations in current electronic structure methods, we empl…
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…
Textured Exciton Insulators
Yves H. Kwan, Ziwei Wang, Glenn Wagner +3
We introduce and study new interacting topological states that arise in time-reversal symmetric bands with an underlying obstruction to forming localized states. If the vall…
Fractional Chern insulator candidate in twisted bilayer checkboard lattice
Jia-Zheng Ma, Rui-Zhen Huang, Guo-Yi Zhu +2
We investigate a fractional Chern insulator (FCI) candidate arising from Moiré bands with higher Chern number C=2 on a magic angle twisted bilayer checkboard lattice (MATBCB). Ther…