Journal ArticleDOI
Quantum cryptography based on Bell's theorem.
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.read more
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Fundamental rate-loss trade-off for the quantum internet
TL;DR: This work derives a fundamental rate-loss trade-off for a quantum internet protocol, by generalizing the Takeoka–Guha–Wilde bound to be applicable to any network topology, and enables to grasp the potential of the future quantum internet.
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High-brightness single photon source from a quantum dot in a directional-emission nanocavity
TL;DR: The perturbed PC cavity design improves the collection efficiency into an objective lens, and improves the coupling efficiency of the collected light into a single mode fiber, for local optical excitation of cavity-coupled quantum dots.
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Resource Theory of Quantum Memories and Their Faithful Verification with Minimal Assumptions
TL;DR: A complete set of game-theoretic conditions equivalent to the existence of a transformation from one quantum channel into another one, by means of classically correlated pre/post processing maps only, are provided, mirroring the resource theory of entanglement in quantum states.
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Entangled Bessel-Gaussian beams
Melanie McLaren,Megan Agnew,Jonathan Leach,Filippus S. Roux,Miles J. Padgett,Robert W. Boyd,Andrew Forbes +6 more
TL;DR: In this article, the authors investigated the Bessel-Gaussian (BG) basis for OAM entanglement and showed that the OAM bandwidth in terms of BG modes can be increased by selection of particular radial wavevectors and leads to a flattening of the spectrum, which allows for higher dimensionality in the entangled state.
Journal ArticleDOI
Quantum Cryptography: Key Distribution and Beyond
TL;DR: This work reviews the progress of quantum cryptography in the last decade, covering quantum key distribution and other applications, and highlights the need to understand more fully the role of quantum entanglement in everyday life.