Operator Representations

The C API provides various data structures for representing fermionic operators in different bases.

QfFermionOperator	An operator in the basis of the second-quantization creation and annihilation operators.
QfMajoranaOperator	An operator in the basis of Majorana fermions.
QfEdgeVertexOperator	An operator in the basis of the edge and vertex operators.
QfTransferVertexOperator	An operator in the basis of the transfer and vertex operators.