Fast quantum key distribution with decoy number states

Achilles, Daryl; Rogacheva, E. V.; Trifonov, Alexei

doi:10.1080/09500340701441293

Cited by 3 publications

(2 citation statements)

References 46 publications

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“…Luckily, there are publications [3,[15][16][17][18] where a more correct point of view is present. BBM92 protocol is immune against photon number splitting and even allows the source of entanglement to be under full Eve's control.…”

Section: Protocol Securitymentioning

confidence: 99%

Security of entanglement-based QKD with realistic parametric down-conversion sources

Kravtsov¹

2023

Laser Phys. Lett.

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The paper analyzes security aspects of practical entanglement-based quantum key distribution (QKD), namely, BBM92 or entanglement-based BB84 protocol. Similar to prepare-and-measure QKD protocols, practical implementations of the entanglement-based QKD have to rely upon non-ideal photon sources. A typical solution for entanglement generation is the spontaneous parametric down-conversion. However, this process creates not only single photon pairs, but also quantum states with more than two photons, which potentially may lead to security deterioration. We show that this effect does not impair the security of entanglement-based QKD systems. We also review the available security proofs and show that properties of the entanglement source have nothing to do with security degradation.

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Section: Protocol Securitymentioning

confidence: 99%

Security of entanglement-based QKD with realistic parametric down-conversion sources

Kravtsov¹

2023

Laser Phys. Lett.

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“…[9]. For a more detailed analysis, we refer the reader to [35] and [36]. f The recent development of replacing HPS street lights with LEDs positively affects noise counts because the LED spectrum is marginal in NIR and IR.…”

Section: Availability Of Data and Materialsmentioning

confidence: 99%

Q3Sat: quantum communications uplink to a 3U CubeSat—feasibility & design

Neumann

Joshi

Fink

et al. 2018

EPJ Quantum Technol.

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Satellites are the most efficient way to achieve global scale quantum communication (Q.Com) because unavoidable losses restrict fiber based Q.Com to a few hundred kilometers. We demonstrate the feasibility of establishing a Q.Com uplink with a 3U CubeSat, measuring only 10 × 10 × 34 cm 3 , using commercial off-the-shelf components, the majority of which have space heritage. We demonstrate how to leverage the latest advancements in nano-satellite body-pointing to show that our 4 kg CubeSat can generate a quantum-secure key, which has so far only been shown by a much larger 600 kg satellite mission. A comprehensive link budget and simulation was performed to calculate the secure key rates. We discuss design choices and trade-offs to maximize the key rate while minimizing the cost and development needed. Our detailed design and feasibility study can be readily used as a template for global scale Q.Com.

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An Arbitrated Quantum Signature Scheme Based on W States

Jiang

2017

Advances in Intelligent Systems and Computing

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Fast quantum key distribution with decoy number states

Cited by 3 publications

References 46 publications

Security of entanglement-based QKD with realistic parametric down-conversion sources

Security of entanglement-based QKD with realistic parametric down-conversion sources

Q3Sat: quantum communications uplink to a 3U CubeSat—feasibility & design

An Arbitrated Quantum Signature Scheme Based on W States

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