Entanglement and Teleportation in Bipartite System
نویسنده
چکیده
We present a mathematical formulation of old teleportation protocol (original teleportation protocol introduced by Bennett et.al.) in a new fashion 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 > 1 2 . Also we discuss the case when p1 ≤ 12 . We derive a new condition for the entanglement of a special set of states in a bipartite system. Also we discuss the mathematical meaning of partial trace and partial transposition in bipartite system.
منابع مشابه
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