Wave-packet dynamics by optimized polynomials methods
نویسندگان
چکیده
An optimized and numerically stable method, based on the formalism of orthogonal polynomials, is proposed to solve the time-dependent Schrödinger equation and to construct energy-filtered wave-packets. It is compared to other methods (Runge-Kutta, Second-Order Differencing scheme). A method is also devised to study quantum diffusion in finite systems with periodic boundary conditions, which allows to suppress boundary effects. As an illustration of our methods, electronic localization is studied in a random magnetic flux lattice.
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تاریخ انتشار 2000