Spacetime Neural Network for High Dimensional Quantum Dynamics
2021
We develop a spacetime neural network method with second order optimization for solving quantum dynamics from the high dimensional Schrodinger equation. In contrast to the standard iterative first order optimization and the time-dependent variational principle, our approach utilizes the implicit mid-point method and generates the solution for all spatial and temporal values simultaneously after optimization. We demonstrate the method in the Schrodinger equation with a self-normalized autoregressive spacetime neural network construction. Future explorations for solving different high dimensional differential equations are discussed.
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