cirq.CY

The controlled Y gate.

This is the exponent=1 instance of cirq.CYPowGate.

The unitary matrix of this gate is:

\[ \begin{bmatrix} 1 & 0 & 0 & 0 \\ 0 & 1 & 0 & 0 \\ 0 & 0 & 0 & -i \\ 0 & 0 & i & 0 \end{bmatrix} \]