mindquantum.core.operators.commutator

mindquantum.core.operators.commutator(left_operator, right_operator)[source]

Compute the commutator of two operators.

Parameters

left_operator (Union[FermionOperator, QubitOperator, QubitExcitationOperator]) – FermionOperator or QubitOperator.
right_operator (Union[FermionOperator, QubitOperator, QubitExcitationOperator]) – FermionOperator or QubitOperator.

Raises

TypeError – left_operator and right_operator are not of the same type.

Examples

>>> from mindquantum.core.operators import QubitOperator, FermionOperator, commutator
>>> qub_op1 = QubitOperator("X1 Y2")
>>> qub_op2 = QubitOperator("X1 Z2")
>>> commutator(qub_op1, qub_op1)
0
>>> commutator(qub_op1, qub_op2)
(2j) [X2]