U2 Gate

[bramathon]

Pyquil currently contains a definition for the U gate. However, there is an alternative parameterization that is often used.

def U2(θ, ϕ, λ):
    return np.array([
        [np.cos(θ/2) * np.exp(-1j* (ϕ + λ)/2), -1j* np.sin(θ/2) *np.exp(-1j*(ϕ - λ)/2)],
        [-1j* np.sin(θ/2) * np.exp(+1j* (ϕ-λ)/2),  np.cos(θ/2)* np.exp(+1j*(ϕ+λ)/2)]
    ])

I suggest adding this the gates module.

[Adittya]

Hello!

if this issue is open to outside contribution, I would like to work on it.

[MarquessV]

Hello!

if this issue is open to outside contribution, I would like to work on it.

👋 Hi @Adittya. Yes, contributions are welcome!