Quantum key distribution with multiphoton pulses: An advantage

Ayan Biswas; Anindya Banerji; Nijil Lal; Pooja Chandravanshi; Rupesh Kumar; Ravindra P. Singh

Quantum key distribution with multiphoton pulses: An advantage

Ayan Biswas, Anindya Banerji, Nijil Lal, Pooja Chandravanshi, Rupesh Kumar, Ravindra P. Singh

Physics

Research output: Working paper › Preprint

Abstract

In this article we present proof-of-concept implementation of quantum key distribution protocol based on BB84 with imperfect devices. We show that using coincidence measurements to monitor multiphoton pulses results in a higher secure key rate over longer distances. This key rate is higher than the decoy state protocol, the most popular practical implementation of quantum key distribution protocol based on BB84. In the experiment, we obtained a key rate of 0.053934 $\pm$ 0.004088 per signal pulse compared to 0.031051$\pm$ 0.003303 for decoy state protocol with similar parameters.

Original language	English
Number of pages	5
Publication status	Published - 17 Aug 2020

Publication series

Name	arXiv

Keywords

quant-ph

Access to Document

2008.07166v1Other version, 457 KB

https://arxiv.org/abs/2008.07166

Cite this

@techreport{2f79228c5ed64613b4979a1f1ea6cbef,

title = "Quantum key distribution with multiphoton pulses: An advantage",

abstract = " In this article we present proof-of-concept implementation of quantum key distribution protocol based on BB84 with imperfect devices. We show that using coincidence measurements to monitor multiphoton pulses results in a higher secure key rate over longer distances. This key rate is higher than the decoy state protocol, the most popular practical implementation of quantum key distribution protocol based on BB84. In the experiment, we obtained a key rate of 0.053934 $\pm$ 0.004088 per signal pulse compared to 0.031051$\pm$ 0.003303 for decoy state protocol with similar parameters. ",

keywords = "quant-ph",

author = "Ayan Biswas and Anindya Banerji and Nijil Lal and Pooja Chandravanshi and Rupesh Kumar and Singh, {Ravindra P.}",

year = "2020",

month = aug,

day = "17",

language = "English",

series = "arXiv",

type = "WorkingPaper",

}

TY - UNPB

T1 - Quantum key distribution with multiphoton pulses

T2 - An advantage

AU - Biswas, Ayan

AU - Banerji, Anindya

AU - Lal, Nijil

AU - Chandravanshi, Pooja

AU - Kumar, Rupesh

AU - Singh, Ravindra P.

PY - 2020/8/17

Y1 - 2020/8/17

N2 - In this article we present proof-of-concept implementation of quantum key distribution protocol based on BB84 with imperfect devices. We show that using coincidence measurements to monitor multiphoton pulses results in a higher secure key rate over longer distances. This key rate is higher than the decoy state protocol, the most popular practical implementation of quantum key distribution protocol based on BB84. In the experiment, we obtained a key rate of 0.053934 $\pm$ 0.004088 per signal pulse compared to 0.031051$\pm$ 0.003303 for decoy state protocol with similar parameters.

AB - In this article we present proof-of-concept implementation of quantum key distribution protocol based on BB84 with imperfect devices. We show that using coincidence measurements to monitor multiphoton pulses results in a higher secure key rate over longer distances. This key rate is higher than the decoy state protocol, the most popular practical implementation of quantum key distribution protocol based on BB84. In the experiment, we obtained a key rate of 0.053934 $\pm$ 0.004088 per signal pulse compared to 0.031051$\pm$ 0.003303 for decoy state protocol with similar parameters.

KW - quant-ph

M3 - Preprint

T3 - arXiv

BT - Quantum key distribution with multiphoton pulses

ER -