Results 61 to 70 of about 8,659,098 (325)

Fundamental limits on key rates in device-independent quantum key distribution [PDF]

open access: yes, 2020
In this paper, we introduce intrinsic non-locality as a quantifier for Bell non-locality, and we prove that it satisfies certain desirable properties such as faithfulness, convexity, and monotonicity under local operations and shared randomness.
Kaur, Eneet   +2 more
core   +3 more sources

Chip-based quantum key distribution

open access: yesAAPPS Bulletin, 2021
Quantum key distribution is a matured quantum science and technology. Over the last 20 years, there has been substantial research and development in this area.
L. Kwek   +6 more
semanticscholar   +1 more source

Long-lived and multiplexed atom-photon entanglement interface with feed-forward-controlled readouts

open access: yesCommunications Physics, 2021
The quantum interface to generate entanglement between a flying photonic qubit and a stationary qubit is a key functionality for the quantum internet. The authors demonstrate a multiplexed quantum interface that stores three long-lived spin-wave qubits ...
Sheng-zhi Wang   +6 more
doaj   +1 more source

The Case for Quantum Key Distribution [PDF]

open access: yes, 2009
Quantum key distribution (QKD) promises secure key agreement by using quantum mechanical systems. We argue that QKD will be an important part of future cryptographic infrastructures.
A.R. Dixon   +20 more
core   +8 more sources

SECURITY OF QUANTUM KEY DISTRIBUTION [PDF]

open access: yesInternational Journal of Quantum Information, 2008
Quantum Information Theory is an area of physics which studies both fundamental and applied issues in quantum mechanics from an information-theoretical viewpoint. The underlying techniques are, however, often restricted to the analysis of systems which satisfy a certain independence condition.
openaire   +2 more sources

Quantum Key Distribution Secured Optical Networks: A Survey

open access: yesIEEE Open Journal of the Communications Society, 2021
Increasing incidents of cyber attacks and evolution of quantum computing poses challenges to secure existing information and communication technologies infrastructure.
Purva Sharma   +4 more
semanticscholar   +1 more source

Quantum key distribution via quantum encryption

open access: yes, 2001
A quantum key distribution protocol based on quantum encryption is presented in this Brief Report. In this protocol, the previously shared Einstein-Podolsky-Rosen pairs act as the quantum key to encode and decode the classical cryptography key.
A. Cabello   +24 more
core   +1 more source

Improving Parameter Optimization in Decoy-State Quantum Key Distribution

open access: yesQuantum Engineering, 2022
Quantum key distribution (QKD) enables two remote users to share a string of key bits with information-theoretical security. Parameter optimization is a crucial step in achieving optimal performance in practical QKD systems. In general, such optimization
Zijian Li, Kejin Wei
semanticscholar   +1 more source

Spatially modulated thermal light in atomic medium for enhanced ghost imaging

open access: yesScientific Reports, 2017
Recent years have seen vast progress in image modulation based on atomic media, with potential applications in both classical optical imaging and quantum imaging regions.
Mingtao Cao   +5 more
doaj   +1 more source

Quantum Key Distribution with Classical Bob [PDF]

open access: yes, 2007
Secure key distribution among two remote parties is impossible when both are classical, unless some unproven (and arguably unrealistic) computation-complexity assumptions are made, such as the difficulty of factorizing large numbers. On the other hand, a
C. A. Fuchs   +6 more
core   +2 more sources

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