cirq.RotationErrorChannel

class cirq.RotationErrorChannel(eps_x, eps_y, eps_z)

Channel to introduce rotation error in X, Y, Z.

__init__(eps_x, eps_y, eps_z) → None

The rotation error channel.

This channel introduces rotation error by epsilon for

rotations in X, Y and Z that are constant in time.

This channel evolves a density matrix via

\rho ->

\exp{-i \epsilon_x \frac{X}{2}} \rho \exp{i \epsilon_x \frac{X}{2}}

• \exp{-i \epsilon_y \frac{Y}{2}} \rho \exp{i \epsilon_y \frac{Y}{2}}
• \exp{-i \epsilon_z \frac{Z}{2}} \rho \exp{i \epsilon_z \frac{Z}{2}}

Parameters:

• eps_x – angle to over rotate in x.
• eps_y – angle to over rotate in y.
• eps_z – angle to over rotate in z.

Methods

on(*qubits)	Returns an application of this gate to the given qubits.
validate_args(qubits)	Checks if this gate can be applied to the given qubits.