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quant-ph2014
A trigonometric integrator for the constrained ring polymer Hamiltonian dynamics
Yunfeng Xiong
A class of trigonometric integrator is proposed for the constrained ring polymer Hamiltonian dynamics, arising from the path integral molecular dynamics. The integrator is formulat…
physics.comp-ph2014
An explicit multistep method for the Wigner problem
Yunfeng Xiong
An explicit multistep scheme is proposed for solving the initial-value Wigner problem. In this scheme, the integrated form of the Wigner equation is approximated by extrapolation o…