Quadratic Quantum Variational Monte Carlo

This paper introduces the Quadratic Quantum Variational Monte Carlo (Q 2 VMC) algorithm, an innovative algorithm in quantum chemistry that significantly enhances the efficiency and accuracy of solving the Schrödinger equation. Inspired by the discretization of imaginary-time Schrödinger evolution, Q 2 VMC employs a novel quadratic update mechanism that integrates seamlessly with neural network-based ansatzes. This study not only advances the field of computational quantum chemistry but also highlights the important role of discretized evolution in variational quantum algorithms, offering a scalable and robust framework for future quantum research.