Two square roots of the SWAP gate, separated and followed by local rotations, implement a controlled phase gate. Local 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.

Ancestors (8)

  1. Square root of the SWAP gate
  2. SWAP gate
  3. Controlled-NOT gate
  4. Controlled unitary gate
  5. Quantum theory
  6. Branches of physics
  7. Physics
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