Quantum dense coding by spatial state entanglement

Details Quantum dense coding by spatial state entanglement Quantum dense coding by spatial state entanglement

2003-05-21

arxiv.org/abs/quant-ph/0305118v1

Phys. Lett. A 313, 261 (2003)

Physics

Quantum Physics

4 pages, 1 figure, Revtex

Scientific paper

10.1016/S0375-9601(03)00770-9

We have presented a theoretical extended version of dense coding protocol using entangled position state of two particles shared between two parties. A representation of Bell states and the required unitary operators are shown utilizing symmetric normalized Hadamard matrices. In addition, some explicit and conceivable forms for the unitary operators are presented by using some introduced basic operators. It is shown that, the proposed version is logarithmically efficient than some other multi-qubit dense coding protocols.

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