Entanglement and Teleportation in Bipartite System

Details Entanglement and Teleportation in Bipartite System Entanglement and Teleportation in Bipartite System

2009-02-26

arxiv.org/abs/0902.4524v2

Physics

Quantum Physics

16 pages and 5 figures. Accepted in IJQI

Scientific paper

We present a mathematical formulation of old teleportation protocol (original teleportation protocol introduced by Bennett et.al.) for mixed states and study in detail the role of mixedness of the two qubit quantum channel in a teleportation protocol. We show that maximally entangled mixed state described by the density matrix of rank-4 will be useful as a two qubit teleportation channel to teleport a single qubit mixed state when the teleportation channel parameter p1 greater than 0.5. Also we discuss the case when p1 less than equal to 0.5.

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