Note about difference between basis function indices and bit string indices.
Note about difference between basis function indices and bit string indices.

Astonishingly a (admittedly brief) audit indicates that we are currently
entirely consistent in which set of basis functions are considered to be
alpha (up) spins and which are considered to be beta (down) spins!

hande-qmc/hande,hande-qmc/hande,ruthfranklin/hande,hande-qmc/hande,hande-qmc/hande,hande-qmc/hande