PauliOp

class PauliOp(*args, **kwargs)

Bases: PrimitiveOp

Deprecated: Class for Operators backed by Terra’s Pauli module.

Deprecated since version 0.24.0: The class qiskit.opflow.primitive_ops.pauli_op.PauliOp is deprecated as of qiskit-terra 0.24.0. It will be removed no earlier than 3 months after the release date. For code migration guidelines, visit https://qisk.it/opflow_migration.

Parameters

• primitive – The Pauli which defines the behavior of the underlying function.

• coeff – A coefficient multiplying the primitive.

Raises

TypeError – invalid parameters.

Methods Defined Here

add	Return Operator addition of self and other, overloaded by +.
adjoint	Return a new Operator equal to the Operator's adjoint (conjugate transpose), overloaded by ~.
compose	Return Operator Composition between self and other (linear algebra-style: A@B(x) = A(B(x))), overloaded by @.
equals	Evaluate Equality between Operators, overloaded by ==.
eval	Evaluate the Operator's underlying function, either on a binary string or another Operator.
exp_i	Return a CircuitOp equivalent to e^-iH for this operator H.
permute	Permutes the sequence of Pauli matrices.
primitive_strings	Return a set of strings describing the primitives contained in the Operator.
tensor	Return tensor product between self and other, overloaded by ^.
to_circuit	Returns a QuantumCircuit equivalent to this Operator.
to_instruction	Returns an Instruction equivalent to this Operator.
to_matrix	Return NumPy representation of the Operator.
to_pauli_op	Returns a sum of PauliOp s equivalent to this Operator.
to_spmatrix	Returns SciPy sparse matrix representation of the Operator.

Attributes

INDENTATION = '  '

coeff

The scalar coefficient multiplying the Operator.

Returns

The coefficient.

instance_id

Return the unique instance id.

num_qubits

parameters

primitive: Pauli

The primitive defining the underlying function of the Operator.

Returns

The primitive object.

settings

Return operator settings.