Five-Partite Continuous-Variable Quantum State Sharing
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-020-04427-y
Abstract: Quantum secret sharing (QSS) is a project to distribute a secret message to multi-parties, who cannot restore it individually only need to cooperate in order to decode it. Here we design a five-partite QSS scheme… read more here.
Keywords: quantum; continuous variable; partite continuous; quantum state ... See more keywords
Continuous-Variable Quantum Computing and its Applications to Cryptography
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-020-04571-5
Abstract: We propose a quantum cryptography based on an algorithm for determining a function using continuous-variable entangled states. The security of our cryptography is based on the Ekert 1991 protocol, which uses an entangled state. Eavesdropping… read more here.
Keywords: quantum; continuous variable; entangled state; large number ... See more keywords
Teleportation-based continuous variable quantum cryptography
Sign Up to like & getrecommendations! Published in 2017 at "Quantum Information Processing"
DOI: 10.1007/s11128-016-1504-8
Abstract: We present a continuous variable (CV) quantum key distribution (QKD) scheme based on the CV quantum teleportation of coherent states that yields a raw secret key made up of discrete variables for both Alice and… read more here.
Keywords: quantum; continuous variable; based continuous; teleportation based ... See more keywords
High-throughput GPU layered decoder of quasi-cyclic multi-edge type low density parity check codes in continuous-variable quantum key distribution systems
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-71534-5
Abstract: The decoding throughput during post-processing is one of the major bottlenecks that occur in a continuous-variable quantum key distribution (CV-QKD) system. In this paper, we propose a layered decoder to decode quasi-cyclic multi-edge type LDPC… read more here.
Keywords: continuous variable; variable quantum; quantum key; key distribution ... See more keywords
Parameter estimation of orbital angular momentum based continuous-variable quantum key distribution
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Applied Physics"
DOI: 10.1063/5.0004411
Abstract: In principle, the number of orbital angular momentum (OAM) eigenstates is unbounded; therefore, OAM multiplexing could greatly increase the transmission rate. Compared with optical fibers, free-space channels fluctuate randomly over time due to the effects… read more here.
Keywords: estimation; parameter estimation; continuous variable; angular momentum ... See more keywords
Continuous variable quantum teleportation through turbulent channels
Sign Up to like & getrecommendations! Published in 2022 at "Physica Scripta"
DOI: 10.1088/1402-4896/ac5d70
Abstract: The turbulence channel, as a potential medium for communications, plays a major role in establishing global quantum networks. However, the weather-tunable channel parameters have an influence on performance of quantum communication system. In this paper,… read more here.
Keywords: variable quantum; transmission; continuous variable; quantum ... See more keywords
Performance improvement of self-referenced continuous-variable quantum key distribution via optical amplifiers
Sign Up to like & getrecommendations! Published in 2021 at "Laser Physics Letters"
DOI: 10.1088/1612-202x/ac0447
Abstract: Self-referenced continuous-variable quantum key distribution (SR-CVQKD) protocols, which operate with a real local local oscillator (LLO) at the receiver side, provide the major advantage that they can defend against all attacks associated with the local… read more here.
Keywords: key distribution; continuous variable; quantum key; variable quantum ... See more keywords
Enhancing continuous variable quantum key distribution with a heralded hybrid linear amplifier
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/ab1ecd
Abstract: We propose a method to improve transmission distance of continuous-variable quantum key distribution via a heralded hybrid linear amplifier (HLA), involving an ideal deterministic linear amplifier and a probabilistic noiseless linear amplifier. The phase-insensitive amplification… read more here.
Keywords: continuous variable; hybrid linear; linear amplifier; variable quantum ... See more keywords
Universal continuous-variable quantum computation without cooling
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.95.022303
Abstract: One limitation of the quantum computing capability of a continuous-variable system is determined by our ability to cool it to the ground state, because pure logical states, in which we accurately encode quantum information, are… read more here.
Keywords: quantum; continuous variable; state protocols; universal continuous ... See more keywords
Unidimensional continuous-variable quantum key distribution using squeezed states
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.98.032321
Abstract: The possibility of using squeezed states in the recently suggested unidimensional continuous-variable quantum key distribution based on a single quadrature modulation is addressed. It is shown that squeezing of the signal states expands the physicality… read more here.
Keywords: continuous variable; squeezed states; unidimensional continuous; variable quantum ... See more keywords
Continuous-variable quantum digital signatures over insecure channels
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.99.032341
Abstract: Digital signatures ensure the integrity of a classical message and the authenticity of its sender. Despite their far-reaching use in modern communication, currently used signature schemes rely on computational assumptions and will be rendered insecure… read more here.
Keywords: continuous variable; quantum digital; digital signatures; variable quantum ... See more keywords