arc.calculations_atom_pairstate.PairStateInteractions.matR#
- PairStateInteractions.matR#
Stores interaction matrices in pair-state basis that scale as \(1/R^3\), \(1/R^4\) and \(1/R^5\) with distance in
matR[0]
,matR[1]
andmatR[2]
respectively. These matrices correspond to dipole-dipole ( \(C_3\)), dipole-quadrupole ( \(C_4\)) and quadrupole-quadrupole ( \(C_5\)) interactions coefficients. Basis states are stored inPairStateInteractions.basisStates
. Calculated byPairStateInteractions.defineBasis
.