Table 7. Reliability of Different Methods for Estimation of Nuclear Quantum Effectsa.
static properties |
dynamical properties |
||||
---|---|---|---|---|---|
method | heat capacity | structure | dielectric constant | diffusion | absorption spectrum |
classical/BOMD | – | – | – | – | – |
1PT | + | – | – | – | – |
2PT | + | – | – | – | – |
1PT+AC | ++ | – | – | – | – |
GSTA | ++ | ++ | + | – | + |
PIMD | +++ | +++ | +++ | – | – |
CMD, RPMD, LSC-IVR | +++ | +++ | +++ | ++ | ++ |
–, no effect; +, rough estimation; ++, good approximation; +++, exact for a particular potential.