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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Journal ArticleDOI
Trusted Noise in Continuous-Variable Quantum Key Distribution: a Threat and a Defense
Vladyslav C. Usenko,Radim Filip +1 more
TL;DR: The role of the phase-insensitive trusted preparation and detection noise in the security of a continuous-variable quantum key distribution is addressed, considering the Gaussian protocols on the basis of coherent and squeezed states and studying them in the conditions of Gaussian lossy and noisy channels.
Journal ArticleDOI
Generation of quantum-entangled twin photons by waveguide nonlinear-optic devices
TL;DR: In this article, a review of the quasi-phase-matched (QPM) waveguide nonlinear-optic device technologies for the generation of entangled twin photons is presented, as well as experimental demonstrations of polarization-entangled twin-photon generation by waveguide Type-I and Type-II TPG devices.
Journal ArticleDOI
Teleportation of a Pure EPR State via GHZ-like State
Chia-Wei Tsai,Tzonelih Hwang +1 more
TL;DR: In this article, a novel teleportation using the GHZ-like state was proposed, in which a pure EPR state α|01〉+β|10〉 can be perfectly teleported.
Journal ArticleDOI
Quantum homomorphic encryption from quantum codes
TL;DR: In this paper, the authors present a quantum encryption scheme which is homomorphic for arbitrary classical and quantum circuits which have at most some constant number of non-Clifford gates.
Journal ArticleDOI
Entanglement verification for quantum-key-distribution systems with an underlying bipartite qubit-mode structure
TL;DR: In this paper, the authors consider entanglement detection for quantum-key-distribution systems that use two signal states and continuous-variable measurements and derive necessary separability criteria for this scenario.