CROTGate

class CROTGate(theta, phi)

Represent a controlled rotation gate about an axis in the XY plane.

\[CROT = R_\phi(\theta) \otimes |0\rangle\langle0| + R_\phi(-\theta) \otimes |1\rangle\langle1|\]

The gate’s first qubit is the control. The formula is in Qiskit’s order, with the control as the right factor.

Parameters:

• theta – Rotation angle.

• phi – Axis angle in the XY plane.

Methods

inverse([annotated])

Return the same gate at \(-\theta\) on the same axis, which keeps the inverse native.