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Journal ArticleDOI

Quantum cryptography based on Bell's theorem.

Artur Ekert
- 05 Aug 1991 - 
- Vol. 67, Iss: 6, pp 661-663
TLDR
Practical application of the generalized Bells theorem in the so-called key distribution process in cryptography is reported, based on the Bohms version of the Einstein-Podolsky-Rosen gedanken experiment andBells theorem is used to test for eavesdropping.
Abstract
Practical application of the generalized Bells theorem in the so-called key distribution process in cryptography is reported. The proposed scheme is based on the Bohms version of the Einstein-Podolsky-Rosen gedanken experiment and Bells theorem is used to test for eavesdropping. © 1991 The American Physical Society.

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Journal ArticleDOI

Disentanglement in a two-qubit system subjected to dissipation environments

TL;DR: In this article, the authors investigated the time evolution of entanglement of two-qubit systems exposed to either thermal or squeezed reservoirs, and they showed that the sudden death of the entangled states always exists in the thermal and squeezed reservoirs.
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Joint remote state preparation

TL;DR: In this paper, Alice, Bob and Charlie are three remote parties sharing the classical knowledge of a secret qubit state, and Alice and Bob share the knowledge of how to prepare the qubit states for Charlie.
Journal ArticleDOI

Simultaneous quantum cryptographic key distribution and conventional data transmission over installed fibre using wavelength-division multiplexing

TL;DR: Wavelength division multiplexing is used to add a secure quantum key distribution channel to a conventional 1.2 Gbit/s data channel operating over 28 km of installed fibre in BT's London and East Anglia multiservice network testbed (LEANET).
Journal ArticleDOI

Self-testing of quantum systems: a review

TL;DR: This work gives a thorough and self-contained introduction and review of self-testing and its application to other areas of quantum information.
Journal ArticleDOI

Phase-Reference-Free Experiment of Measurement-Device-Independent Quantum Key Distribution.

TL;DR: This work proposes a phase-coding reference-frame-independent MDI QKD scheme that requires no phase alignment between the interferometers of two distant legitimate parties and can maintain a positive key generation rate without phase compensation under normal conditions.