N-qubit Quantum Teleportation, Information Splitting and Superdense Coding through the composite GHZ-Bell Channel

Details N-qubit Quantum Teleportation, Information Splitting and Superdense Coding through the composite GHZ-Bell Channel N-qubit Quantum Teleportation, Information Splitting and Superdense Coding through the composite GHZ-Bell Channel

2011-05-20

arxiv.org/abs/1105.4160v1

Physics

Quantum Physics

8 pages, 6 tables

Scientific paper

We introduce a general odd qubit entangled system composed of GHZ and Bell pairs and explicate its usefulness for quantum teleportation, information splitting and superdense coding. After demonstrating the superdense coding protocol on the five qubit system, we prove that '2N +1' classical bits can be sent by sending 'N+1' quantum bits using this channel. It is found that the five-qubit system is also ideal for arbitrary one qubit and two qubit teleportation and quantum information splitting (QIS). For the single qubit QIS, three different protocols are feasible, whereas for the two qubit QIS, only one protocol exists. Protocols for the arbitrary N-qubit state teleportation and quantum information splitting are then illustrated.

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