Reversible reference system propagation algorithm

Reversible reference system propagation algorithm (r-RESPA) is a time stepping algorithm used in molecular dynamics. It evolves the system state over time, Γ ( t ) = e i L t Γ ( t = 0 ) {\displaystyle \Gamma (t)=e^{iLt}\Gamma (t=0)\,} where the L is the Liouville operator.

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