Implementation of controlled quantum teleportation with an arbitrator for secure quantum channels via quantum dots inside optical cavities

We propose a controlled quantum teleportation scheme to teleport an unknown state based on the interactions between flying photons and quantum dots (QDs) confined within single- and double-sided cavities. In our scheme, users (Alice and Bob) can teleport the unknown state through a secure entangleme...

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Bibliographic Details
Published in:Scientific reports 2017-11, Vol.7 (1), p.14905-12, Article 14905
Main Authors: Heo, Jino, Hong, Chang-Ho, Kang, Min-Sung, Yang, Hyeon, Yang, Hyung-Jin, Hong, Jong-Phil, Choi, Seong-Gon
Format: Article
Language:English
Subjects:
639/766
639/766/483/481
Cavities
Electrons
Humanities and Social Sciences
multidisciplinary
Photons
Quantum dots
Science
Science (multidisciplinary)
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Summary:We propose a controlled quantum teleportation scheme to teleport an unknown state based on the interactions between flying photons and quantum dots (QDs) confined within single- and double-sided cavities. In our scheme, users (Alice and Bob) can teleport the unknown state through a secure entanglement channel under the control and distribution of an arbitrator (Trent). For construction of the entanglement channel, Trent utilizes the interactions between two photons and the QD-cavity system, which consists of a charged QD (negatively charged exciton) inside a single-sided cavity. Subsequently, Alice can teleport the unknown state of the electron spin in a QD inside a double-sided cavity to Bob’s electron spin in a QD inside a single-sided cavity assisted by the channel information from Trent. Furthermore, our scheme using QD-cavity systems is feasible with high fidelity, and can be experimentally realized with current technologies.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-017-14515-5