Exchange-pulse CNOT synthesis
= Exchange-pulse CNOT synthesis
Two <square roots of the SWAP gate>, separated and followed by local $z$ <rotations>, implement a <controlled phase gate>. Local $y$ <rotations> of its target convert it into a <CNOT gate>. The construction assumes isotropic exchange and independent one-qubit control; pulse errors and extra <Hamiltonian> terms change the implemented operation.