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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

Quantum cryptography on multiuser optical fibre networks

Paul D. Townsend
- 02 Jan 1997 - 
TL;DR: A practical scheme for multi-user quantum cryptography is introduced, and its operation on an optical fibre network is demonstrated, which enables a single controller on the network to establish, and regularly update, a distinct secret key with each network user.
Journal ArticleDOI

Micrometer-scale integrated silicon source of time-energy entangled photons

TL;DR: In this paper, a microring resonator capable of emitting time-energy entangled photons has been demonstrated on a silicon chip, with an internal pair generation exceeding 107 Hz, and the source operates at milliwatt and submilliwatt pump power.
Journal ArticleDOI

Possible realization of entanglement, logical gates, and quantum-information transfer with superconducting-quantum-interference-device qubits in cavity QED

TL;DR: In this article, a scheme to achieve maximally entangled states, controlled phase shift gate, and SWAP gate for two superconducting-quantum-interference-device (SQUID) qubits, by placing SQUIDs in a microwave cavity is presented.
Journal ArticleDOI

Inside Quantum Repeaters

TL;DR: In this article, a review of various approaches to quantum repeaters, and their expected performance and limitations are discussed, as well as the expected performance of the future quantum Internet and quantum teleportation.
Journal ArticleDOI

On-demand semiconductor source of entangled photons which simultaneously has high fidelity, efficiency, and indistinguishability

TL;DR: This work generates entangled photon pairs with a state fidelity of 0.90(1), pair generation rate, pair extraction efficiency, and photon indistinguishability simultaneously, and will open up many applications in high-efficiency multiphoton experiments and solid-state quantum repeaters.