44 citations · 147 across the 22 of their papers we have counts for
9 papers · 1 filter
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 the Impact of Quenched Disorder on 2D Electron Wigner Solids
Zhehao Ge, Conor Smith, Zehao He +17
Electron Wigner solids (WSs)1-12 provide an ideal system for understanding the competing effects of electron-electron and electron-disorder interactions, a central unsolved problem…
Excited states in auxiliary field quantum Monte Carlo
Ankit Mahajan, Sandeep Sharma, Shiwei Zhang +1
We systematically investigate the calculation of excited states in quantum chemistry using auxiliary field quantum Monte Carlo (AFQMC). Symmetry allows targeting of the lowest trip…
Engineering Hubbard models with gated two-dimensional moiré systems
Yiqi Yang, Yubo Yang, Miguel A. Morales +1
Lattice models are powerful tools for studying strongly correlated quantum many-body systems, but their general lack of exact solutions motivates efforts to simulate them in tunabl…
Spatiotemporal Order and Parametric Instabilities from First-Principles
Daniel Kaplan, Pavel A. Volkov, Jennifer Coulter +2
Shaping crystal structure with light is an enduring goal of physics and materials engineering. Here we present calculations in candidate materials selected by symmetry that allow l…
Addressing the Infinite Variance Problem in Fermionic Monte Carlo Simulations: Retrospective Error Remediation and the Exact Bridge Link Method
Zhou-Quan Wan, Shiwei Zhang
We revisit the infinite variance problem in fermionic Monte Carlo simulations, which is widely encountered in areas ranging from condensed matter to nuclear and high-energy physics…
Implementing advanced trial wave functions in fermion quantum Monte Carlo via stochastic sampling
Zhi-Yu Xiao, Zixiang Lu, Yixiao Chen +2
We introduce an efficient approach to implement correlated many-body trial wave functions in auxiliary-field quantum Monte Carlo (AFQMC). To control the sign/phase problem in AFQMC…
Single-Particle Dispersion and Density of States of the Half-Filled 2D Hubbard Model
Gabe Schumm, Shiwei Zhang, Anders W. Sandvik
Implementing an improved method for analytic continuation and working with imaginary-time correlation functions computed using quantum Monte Carlo simulations, we resolve the singl…
Critical gate distance for Wigner crystallization in the two-dimensional electron gas
Agnes Valenti, Vladimir Calvera, Yubo Yang +4
We report on the properties of the two-dimensional electron gas in a dual-gate geometry, using quantum Monte Carlo methods to obtain aspects of the phase diagram as a function of e…