2018
DOI: 10.1103/physreva.98.032314
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Abstract: Article:Papanastasiou, Panagiotis, Ottaviani, Carlo orcid.org/0000-0002-0032-3999 and Pirandola, Stefano orcid.org/0000-0001-6165-5615 (2018) Gaussian one-way thermal quantum cryptography with finite-size effects. Physical Review A. 032314. pp. We study the impact of finite-size effects on the security of thermal one-way quantum cryptography. Our approach considers coherent/squeezed states at the preparation stage, on the top of which the sender adds trusted thermal noise. We compute the key rate incorporating… Show more

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Cited by 21 publications
(16 citation statements)
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“…Similarly, they can be directly employed in two-way CV-QKD if the protocol is run in RR [413]. This possibility opened the way for extending CV-QKD to longer wavelengths down to the microwave regime, where the protocols can be implemented for short-range applications and are sufficiently robust to finite-size effects [414]. More recently, the terahertz regime has been also proposed for short-range uses of CV-QKD [415].…”
Section: H Thermal-state Qkdmentioning
confidence: 99%
“…Similarly, they can be directly employed in two-way CV-QKD if the protocol is run in RR [413]. This possibility opened the way for extending CV-QKD to longer wavelengths down to the microwave regime, where the protocols can be implemented for short-range applications and are sufficiently robust to finite-size effects [414]. More recently, the terahertz regime has been also proposed for short-range uses of CV-QKD [415].…”
Section: H Thermal-state Qkdmentioning
confidence: 99%
“…Note added. An independent work [37] has been posted on arXiv. This work also studies the impact of the finitesize effect of the CV-MDI QKD protocol.…”
Section: Discussionmentioning
confidence: 99%
“…The shot-noise variance is written as V A0 = V 0 + V TH , where V 0 denotes the variance of the initial coherent (V 0 = 1) or squeezed state(V 0 < 1) from which the sender starts and V TH denotes the variance of the thermal noise. [23] Subsequently, the resource is transmitted through a quantum channel characterized by a transmittivity T and the excess noise šœ–.…”
Section: Thermal States Quantum Cryptography With the Added Noisementioning
confidence: 99%
“…In 2010, Leverrier et al [21] first put forward the framework of finite-size analysis in the CVQKD, where they mainly applied the parameter estimation process. In recent years, analyzing the security of CVQKD with a finite number of signals has been a hotspot and some achievements [22][23][24][25] have been made. The theoretical analyses have shown that the consideration of the finite-size can deteriorate the performance including the key rate, the transmission distance, and the tolerance to the channel noise.…”
Section: Introductionmentioning
confidence: 99%
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