12 papers
Rhombohedral Graphene: A Tale of Many Crystals
Ahmed Abouelkomsan, Filippo Gaggioli, Daniele Guerci +1
Experiments on rhombohedral graphene have uncovered an extraordinary wealth of correlated quantum phases - from chiral superconductors to electronic crystals - all within a single…
Scaling universal Fermi network toward ground states: A diffusion-Monte-Carlo assessment
Yu-Sheng Li, Saskia Poldmaa, Tzen Ong +4
In this work, we show that Fermi Sets---a provably universal neural network architecture for fermionic wavefunctions---can be systematically scaled up to find interacting ground st…
Topological Order in Neural Wavefunctions
Ahmed Abouelkomsan, Max Geier, Liang Fu
Topologically ordered states are among the most interesting quantum phases of matter that host emergent quasi-particles having fractional charge and obeying fractional quantum stat…
Anti-topological crystal and non-Abelian liquid in twisted semiconductor bilayers
Aidan P. Reddy, D. N. Sheng, Ahmed Abouelkomsan +2
We show that electron crystals compete closely with non-Abelian fractional Chern insulators in the half-filled second moiré band of twisted bilayer MoTe. Depending on the twis…
Topological superconductivity with emergent vortex lattice in twisted semiconductors
Daniele Guerci, Ahmed Abouelkomsan, Liang Fu
The coexistence of superconductivity and fractional quantum anomalous Hall (FQAH) effect has recently been observed in twisted MoTe and theoretically demonstrated in a model of…
First-Principles AI finds crystallization of fractional quantum Hall liquids
Ahmed Abouelkomsan, Liang Fu
When does a fractional quantum Hall (FQH) liquid crystallize? Addressing this question requires a framework that treats fractionalization and crystallization on equal footing, espe…