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High-accuracy variational Monte Carlo for frustrated magnets with deep neural networks
Christopher Roth, Attila Szabó, Allan MacDonald
We show that neural quantum states based on very deep (4--16-layered) neural networks can outperform state-of-the-art variational approaches on highly frustrated quantum magnets, i…
Magnetism and Quantum Melting in Moiré-Material Wigner Crystals
Nicolás Morales-Durán, Pawel Potasz, Allan H. MacDonald
Recent experiments have established that semiconductor-based moiré materials can host incompressible states at a series of fractional moiré-miniband fillings. These states have bee…
Magnetic ground states of honeycomb lattice Wigner crystals
Nitin Kaushal, Nicolás Morales-Durán, Allan H. MacDonald +1
Lattice Wigner crystal states stabilized by long-range Coulomb interactions have recently been realized in two-dimensional moiré materials. We employ large-scale unrestricted Hartr…
Layer Pseudospin Magnetism in Transition-Metal-Dichalcogenide Double-Moirés
Yongxin Zeng, Nemin Wei, Allan H. MacDonald
Spontaneous order of layer pseudospins in two-dimensional bilayers is common in quantum Hall systems, where it is responsible for hysteretic responses to gate fields in states with…