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Multiple choice
A controlled-phase gate
C
P
(
λ
)
CP(\lambda)
C
P
(
λ
)
acts on two qubits. Which single basis state does it multiply by the phase
e
i
λ
e^{i\lambda}
e
iλ
, leaving all other basis states unchanged?
🔬 try it before you answer
∣
10
⟩
|10\rangle
∣10
⟩
∣
11
⟩
|11\rangle
∣11
⟩
∣
01
⟩
|01\rangle
∣01
⟩
∣
00
⟩
|00\rangle
∣00
⟩
Check answer