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To implement the two-qubit evolution
e
−
i
θ
Z
Z
e^{-i\theta ZZ}
e
−
i
θ
Z
Z
, the lesson reduces it to a single Rz using a CNOT ladder. Which gate sequence (qubit 0 is control) implements
e
−
i
θ
Z
Z
e^{-i\theta ZZ}
e
−
i
θ
Z
Z
?
h(0); h(1); rz(theta, 0)
cx(0,1); rz(2*theta, 1); cx(0,1)
cx(0,1); rz(theta/2, 0); cx(0,1)
rz(theta, 0); rz(theta, 1)
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