Sanket Nandan, Debashis Saha, Prasanta K. Panigrahi
We demonstrate e?fficient protocols to implement generalized controlled-Hermitian gates between remote parties, sharing maximally entangled channels. These controlled operations are carried out on arbitrary states, with spatially separated constituent qubits. Gate teleportation is illustrated in a distributed Bell state network, through local operations and classical communications, with both parallel and series con?figurations. It is pointed out that GHZ network is equally effi?cient in carrying out the gate teleportation. We then explicate the protocol for complete teleportation of controlled-controlled-Hermitian gate, a generalized form of To?oli gate, using Bell state entangled channels. Subsequently, all the protocols are generalized for `n'-qubit gates.
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http://arxiv.org/abs/1206.6323
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