qiskit.opflow.converters.TwoQubitReduction¶
-
class
TwoQubitReduction(num_particles)[source]¶ Two qubit reduction converter which eliminates the central and last qubit in a list of Pauli that has diagonal operators (Z,I) at those positions.
Chemistry specific method: It can be used to taper two qubits in parity and binary-tree mapped fermionic Hamiltonians when the spin orbitals are ordered in two spin sectors, (block spin order) according to the number of particles in the system.
- Parameters
num_particles (
Union[int,List[int],Tuple[int,int]]) – number of particles, if it is a list, the first number is alpha and the second number if beta.
-
__init__(num_particles)[source]¶ - Parameters
num_particles (
Union[int,List[int],Tuple[int,int]]) – number of particles, if it is a list, the first number is alpha and the second number if beta.
Methods
__init__(num_particles)- type num_particles
Union[int,List[int],Tuple[int,int]]
convert(operator)Converts the Operator to tapered one by Z2 symmetries.