Gradient symplectic algorithms for solving the Schrödinger equation with time-dependent potentials
Gradient symplectic algorithms for solving the Schrödinger equation with time-dependent potentials
We show that the method of factorizing the evolution operator to fourth order with purely positive coefficients, in conjunction with Suzuki’s method of implementing time-ordering of operators, produces a new class of powerful algorithms for solving the Schrödinger equation with time-dependent potentials. When applied to the Walker–Preston model of a …