TL;DR
This paper explores a quantum teleportation scheme using partially entangled states, revealing how quantum information can be distributed and concealed, and demonstrating probabilistic teleportation even with maximally entangled channels.
Contribution
It introduces a novel scheme for concealing quantum information during teleportation and shows probabilistic success with maximally entangled channels.
Findings
Quantum information can be distributed between sender and receiver.
Concealing quantum information is possible within the teleportation process.
Probabilistic teleportation can succeed even with maximally entangled channels.
Abstract
We study the teleportation scheme performed by means of a partially entangled pure state. We found that the information belonging to the quantum channel can be distributed into both the system of the transmitter and the system of the receiver. Thus, in order to complete the teleportation process it is required to perform an "unambiguous non-orthogonal quantum states discrimination" and an "extraction of the quantum information" processes. This general scheme allows one to design a strategy for concealing the unknown information of the teleported state. Besides, we showed that the teleportation and the "concealing the quantum information" process, can be probabilistically performed even though the bipartite quantum channel is maximally entangled.
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Taxonomy
TopicsQuantum Information and Cryptography · Quantum Mechanics and Applications · Quantum Computing Algorithms and Architecture