transfer_vertex_to_edge_vertex

transfer_vertex_to_edge_vertex(inter_op)

Map a TransferVertexOperator to an EdgeVertexOperator.

Parameters:

inter_op – the transfer-vertex operator to map.

Returns:

The mapped edge-vertex operator.

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Definition

This function decomposes the transfer-vertex operators in terms of the edge-vertex operators as defined here.

Usage

>>> from qiskit_fermions.mappers.library import transfer_vertex_to_edge_vertex
>>> from qiskit_fermions.operators import TransferVertexOperator
>>> dir_op = TransferVertexOperator.from_dict({((0, 0),): 1, ((1, 2),): 2, ((2, 1),): -2})
>>> undir_op = transfer_vertex_to_edge_vertex(dir_op)
>>> print(format(undir_op.simplify()))
  1.000000e0 +0.000000e0j * (V(0))
  0.000000e0 +1.000000e0j * (V(1) E(1,2))
 -0.000000e0 -1.000000e0j * (E(1,2) V(2))