Reversible reference system propagation algorithm

{{Short description|Time-stepping algorithm in molecular dynamics}}

{{one source |date=March 2024}}

Reversible reference system propagation algorithm (r-RESPA) is a time stepping algorithm used in molecular dynamics.AR Leach. Molecular modelling: principles and applications 1998, p. 363

It evolves the system state over time,

:$\backslash Gamma(t)\; =\; e^\{iLt\}\backslash Gamma(t=0)\; \backslash ,$

where the L is the Liouville operator.