pytenet.opgraph

Operator graph internal data structure for generating MPO representations.

Classes

OpGraph(nodes, edges, nid_terminal)	Operator graph: internal data structure for generating MPO representations.
OpGraphEdge(eid, nids, opics)	Operator graph edge, representing a weighted sum of local operators which are indexed by their IDs.
OpGraphNode(nid, eids_in, eids_out, qnum)	Operator graph node, corresponding to a virtual bond in an MPO.
OpHalfchain(oids, qnums, nidl)	Operator half-chain, temporary data structure for building an operator graph from a list of operator chains.
UNode(oid, qnum0, qnum1, nidl)	Store the information of a U node, temporary data structure for building an operator graph from a list of operator chains.