From Classical State-Swapping to Quantum Teleportation
arXiv:quant-ph/0105117 · doi:10.1103/PhysRevA.65.012320
Abstract
The quantum teleportation protocol is extracted directly out of a standard classical circuit that exchanges the states of two qubits using only controlled-NOT gates. This construction of teleportation from a classically transparent circuit generalizes straightforwardly to d-state systems.
Missing daggers added to Figures 13, 14, and 15. Otherwise this is the version that appeared in Physical Review
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