2015
DOI: 10.3390/e17074654
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Continuous Variable Quantum Key Distribution with a Noisy Laser

Abstract: Existing experimental implementations of continuous-variable quantum key distribution require shot-noise limited operation, achieved with shot-noise limited lasers. However, loosening this requirement on the laser source would allow for cheaper, potentially integrated systems. Here, we implement a theoretically proposed prepare-and-measure continuous-variable protocol and experimentally demonstrate the robustness of it against preparation noise stemming for instance from technical laser noise. Provided that di… Show more

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Cited by 19 publications
(19 citation statements)
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References 32 publications
(54 reference statements)
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“…[27][28][29], assuming measurementdevice-independence (MDI) [30,31] as a counter-measure against detectors' side-channel attacks, have extended the concept of CV-QKD to end-to-end network implementations [32]. For most of these protocols, not only experiments were shown [27,[33][34][35][36][37][38][39][40], but also their security analysis has been gradually refined to incorporate finite-size effects [41][42][43] and composable aspects [44][45][46].…”
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confidence: 99%
“…[27][28][29], assuming measurementdevice-independence (MDI) [30,31] as a counter-measure against detectors' side-channel attacks, have extended the concept of CV-QKD to end-to-end network implementations [32]. For most of these protocols, not only experiments were shown [27,[33][34][35][36][37][38][39][40], but also their security analysis has been gradually refined to incorporate finite-size effects [41][42][43] and composable aspects [44][45][46].…”
mentioning
confidence: 99%
“…This is a correction to the manuscript [1]. Due to misprints in Equations (31) and (43) of [2], the results in Figures 2a and 4a in [1] were incorrectly calculated.…”
mentioning
confidence: 97%
“…
This is a correction to the manuscript [1]. Due to misprints in Equations (31) and (43)

but it should in fact read,

This misprint propagated such that in Equation (43) of [2], the parameter c reads,

when it should have been

This errata contains the mentioned plots where the revised expressions have been applied, such that the replacement for Figure 2.

…”
mentioning
confidence: 99%
“…Some one-way schemes have been experimentally realized [37][38][39][40], over remarkably long distances [41,42]. Additional theoretical analysis has been focused on QKD with thermal states [43][44][45][46][47][48], with an experiment performed [49]. Recently, CV-QKD has been extended to a network configuration [50,51], implementing the general idea of measurement-device-independent (MDI) QKD [52,53].…”
Section: Introductionmentioning
confidence: 99%