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fqe.fci_graph_set.FciGraphSet

FciGraghSet is the global manager for string mapping. It generalizes

alphamapping and betamapping in FciGraph and maps between different sectors.

maxparticle (int) - the maximum particle number difference up to which the sectors are to be linked

maxspin (int) - the maximum spin number difference up to which the sectors are to be linked

params (List[List[int]]) - a list of parameter lists. The parameter lists are comprised of

p[0] (int) - number of particles;
p[1] (int) - z component of spin angular momentum;
p[2] (int) - number of spatial orbitals

Methods

append

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Add an FciGraph object to self._dataset and links it against all the exisiting sectors.

Args
graph (FciGraph) - a FciGraph object to be appended

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Links between all of the sectors in the self._dataset