SA-NNBF creates fully antisymmetric, spin-symmetric neural wavefunctions via sum-of-products spin eigenfunctions and tensor compression, enabling VMC calculations that outperform standard NNBF and SA-DMRG on systems with over 100 electrons including FeMoco.
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Simulations find that the inverse energy gap in 2D Edwards-Anderson spin glasses develops a fat-tailed distribution with infinite variance for large N, while the Sherrington-Kirkpatrick model shows a finite-variance gap scaling roughly as N to the power -1/3.
Derives an exact downfolded effective model by integrating out the rest space, states conditions for perturbative truncation, and formally recovers cRPA with corrections.
A Monte Carlo method maps quantum Fisher information lower bounds for explicit many-body wavefunctions to classical expectation values, enabling efficient computation under decoherence for Jastrow-Gutzwiller states.
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Spin-adapted neural network backflow for strongly correlated electrons
SA-NNBF creates fully antisymmetric, spin-symmetric neural wavefunctions via sum-of-products spin eigenfunctions and tensor compression, enabling VMC calculations that outperform standard NNBF and SA-DMRG on systems with over 100 electrons including FeMoco.
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Energy gap of quantum spin glasses: a projection quantum Monte Carlo study
Simulations find that the inverse energy gap in 2D Edwards-Anderson spin glasses develops a fat-tailed distribution with infinite variance for large N, while the Sherrington-Kirkpatrick model shows a finite-variance gap scaling roughly as N to the power -1/3.
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Exact downfolding and its perturbative approximation
Derives an exact downfolded effective model by integrating out the rest space, states conditions for perturbative truncation, and formally recovers cRPA with corrections.
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Quantum Fisher Information under decoherence with explicit wavefunctions
A Monte Carlo method maps quantum Fisher information lower bounds for explicit many-body wavefunctions to classical expectation values, enabling efficient computation under decoherence for Jastrow-Gutzwiller states.