New lower-bound techniques based on controllable correlation and entanglement yield non-trivial bounds for Haar-random two-qubit unitaries and the first known bounds for CNOT, DCNOT, sqrt(SWAP), and XX gates, with a tight result for CNOT.
Quantum tagging: Authenti- cating location via quantum information and relativistic signaling constraints.Physi- cal Review A, 84(1):012326, 2011
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Lower bounds on non-local computation from controllable correlation
New lower-bound techniques based on controllable correlation and entanglement yield non-trivial bounds for Haar-random two-qubit unitaries and the first known bounds for CNOT, DCNOT, sqrt(SWAP), and XX gates, with a tight result for CNOT.