CKMdgGate

class CKMdgGate

Bases: QutritGate, DifferentiableUnitary, CachedClass

The Cabibbo-Kobayashi-Maskawa dagger single qutrit gate.

References

• Particle Data Group review: https://pdg.lbl.gov/2023/reviews/rpp2022-rev-ckm-matrix.pdf

• https://link.springer.com/article/10.1007/JHEP01(2019)106

Notes

• Due to the current experimental searches for the exact values of the mixing parameters, and to allow for beyond standard model physics, we provide the user with the flexibility of setting each parameter.

__init__()

Attributes

dim	The matrix dimension for this unitary.
name	The name of this gate.
num_params	The number of real parameters this unitary-valued function takes.
num_qudits	The number of qudits this unitary can act on.
qasm_name	The qasm identifier for this gate.
radixes	The number of orthogonal states for each qudit.

Methods

check_parameters(params)	Check parameters are valid and match the unitary.
get_grad([params])	Return the gradient for this gate.
get_inverse()	Return the gate's inverse as a gate.
get_inverse_params([params])	Return the parameters that invert the gate.
get_qasm(params, location)	Returns the qasm string for this gate.
get_qasm_gate_def()	Returns a qasm gate definition block for this gate.
get_unitary([params])	Return the unitary for this gate, see Unitary for more.
get_unitary_and_grad([params])	Return a tuple combining the outputs of get_unitary and get_grad.
is_constant()	Return true if this unitary doesn't take parameters.
is_parameterized()	Return true if this unitary is parameterized.
is_qubit_only()	Return true if this unitary can only act on qubits.
is_qudit_only(radix)	Return true if this unitary can only act on radix-qudits.
is_qutrit_only()	Return true if this unitary can only act on qutrits.
is_self_inverse([params])	Checks whether the unitary is its own inverse.
with_all_frozen_params(params)	Freeze all of a gate's parameters so they don't change from optimization.
with_frozen_params(frozen_params)	Freeze some of a gate's parameters so they don't change from optimization.