RESPA

This means the reversible reference system propagator algorithm, a well known multiple time step method.

References

• Mark E. Tuckerman, Bruce J. Berne, and Angelo Rossi "Molecular dynamics algorithm for multiple time scales: Systems with disparate masses" J. Chem. Phys. 94 1465 (1990)
• M. Tuckerman, B. J. Berne and G. J. Martyna "Reversible multiple time scale molecular dynamics", Journal of Chemical Physics 97 pp. 1990-2001 (1992)
• Steven J. Stuart, Ruhong Zhou, and B. J. Berne "Molecular dynamics with multiple time scales: The selection of efficient reference system propagators" Stuart, S., Zhou, R., and Berne, B., J. Chem. Phys. 105 1426 (1996)
• Piero Procacci and Massimo Marchi "Taming the Ewald sum in molecular dynamics simulations of solvated proteins via a multiple time step algorithm" Procacci, P., and Marchi, M., J. Chem. Phys. 104 3003 (1996)