Tensor-product solver extended to Schrödinger operator for O(N^{1+1/d}) inversion/exponentiation on separable potentials and mesh-independent PCG preconditioning for bounded perturbations, demonstrated on 3D ground states and up to 9D Hamiltonian simulation.
Thalhammer , High-order exponential operator splitting methods for time-dependent Schr¨ odinger equations, SIAM J
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A Simple GPU-Accelerated Solver for the Schr\"odinger Operator with Applications to Ground States and Hamiltonian Simulation
Tensor-product solver extended to Schrödinger operator for O(N^{1+1/d}) inversion/exponentiation on separable potentials and mesh-independent PCG preconditioning for bounded perturbations, demonstrated on 3D ground states and up to 9D Hamiltonian simulation.