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RESEARCH PRODUCT
Teleportation-induced correlated quantum channels.
G. M. PalmaFilippo CarusoFilippo CarusoFilippo CarusoVittorio Giovannettisubject
PhysicsBell stateQuantum PhysicsFOS: Physical sciencesGeneral Physics and AstronomyQuantum entanglementQuantum channelQuantum capacityQuantum Physics01 natural sciences010305 fluids & plasmasComputer Science::Emerging TechnologiesQuantum mechanicsQubit0103 physical sciencesquantum information theoryquantum channelsQuantum informationQuantum Physics (quant-ph)010306 general physicsAmplitude damping channelQuantum teleportationdescription
Quantum teleportation of a n-qubit state performed using as entangled resource a general bipartite state of 2n qubits instead of n Bell states is equivalent to a correlated Pauli channel. This provides a new characterization of such channels in terms of many-body correlation functions of the teleporting media. Our model is then generalized to the Continuous Variable case. We show that this new representation provides a relatively simple method for determining whether a correlated quantum channel is able to reliably convey quantum messages by studying the entanglement properties of the teleportation mediating system.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-06-02 | Physical review letters |