Key rate estimation of measurement-device-independent quantum key distribution protocol in satellite-earth and intersatellite links

Khaleel, Ahmed I.; Tawfeeq, Shelan K.

doi:10.1142/s0219749918500272

Cited by 6 publications

(1 citation statement)

References 17 publications

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“…A list of all the required parameters as inputs to the simulation model is found in Table 1. The telescope's primary and secondary mirror radius in addition to are taken from SILEX experiment and Tenerife's telescope [9,13,14] that are considered as global standard experiments for FS-QKD systems. and can be set by the user in the modeled GUI tool.…”

Section: B the Free-space Quantum Channelmentioning

confidence: 99%

Modeling and Simulation for Performance Evaluation of Optical Quantum Channels in Quantum key Distribution Systems

Mushatet

Tawfeeq

2021

alkej

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In this research work, a simulator with time-domain visualizers and configurable parameters using a continuous time simulation approach with Matlab R2019a is presented for modeling and investigating the performance of optical fiber and free-space quantum channels as a part of a generic quantum key distribution system simulator. The modeled optical fiber quantum channel is characterized with a maximum allowable distance of 150 km with 0.2 dB/km at =1550nm. While, at =900nm and =830nm the attenuation values are 2 dB/km and 3 dB/km respectively. The modeled free space quantum channel is characterized at 0.1 dB/km at =860 nm with maximum allowable distance of 150 km also. The simulator was investigated in terms of the execution of the BB84 protocol based on polarizing encoding with consideration of the optical fiber and free-space quantum channel imperfections and losses by estimating the quantum bit error rate and final secure key. This work shows a general repeatable modeling process for significant performance evaluation. The most remarkable result that emerged from the simulated data generated and detected is that the modeling process provides guidance for optical quantum channels design and characterization for other quantum key distribution protocols.

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Section: B the Free-space Quantum Channelmentioning

confidence: 99%

Modeling and Simulation for Performance Evaluation of Optical Quantum Channels in Quantum key Distribution Systems

Mushatet

Tawfeeq

2021

alkej

Self Cite

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Security and communication distance improvement in decoy states based quantum key distribution using pseudo-random bases choice for photon polarization measurement

Tchoffo

Tene

2021

Opt Quant Electron

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This paper proposes a new quantum key distribution(QKD) protocol, namely the pseudo-random bases entangled photon based QKD (PRB-EPQKD) protocol. The latest mainly focuses on three properties, including the security of the protocol, the secure key size and the maximum communication distance between legitimate communication users (Alice and Bob). To achieve this, we first consider a spontaneous-parametric-down (SPDC) photon source located in a low-earth-orbit (LEO) type satellite capable of producing and distributing entangled photons pairs to Alice and Bob. Secondly, we assume that Alice's and Bob's photons state measurement bases are identically generated via a pseudo-random number generator (PRNG), namely the quantum logistic map (QLM). Finally, we also assume that in addition to their photons states, Alice and Bob intentionally share a set of decoy states at each pulse with randomly selected intensity, and with the goal to detect the presence of the eavesdropper (Eve). Under these considerations, the secure key rate upper bound is evaluated applying the Gottesman-Lo-Lutkenhaus-Preskill's (GLLP) formula, for two different implementations, namely the non-decoy states and the infinite active decoy states based QKD. It is observed a significant improvement in the secure key size and the communication distance as well, compared to existing protocols, since we realize that under daylight, downlinks satellite conditions, a kindly selected light source, and good crystal's properties, the maximum communication distance can reach up to 70000 km. In addition, using the combined type-I and type-II SPDC photons source as our entangled photons pairs generator, significantly improved the photon mean number and render our protocol more robust against photon number division attack and against attenuation-induced atmospheric propagation. Furthermore, the protocol is more secure as compared to existing ones, given that any eavesdropper must crack simultaneously the chaotic system used as PRNG and the QKD system, before getting any useful information as regards to the measurement bases used by Alice and Bob, and thus the secure key.

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Integrated gallium phosphide-waveguide polarization rotator based on rotating a horizontal slot by 45 degree for 700 nm wavelength

Salih,

Tawfeeq

2023

J Opt

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Polarization manipulation elements operating at visible wavelengths represent a critical component of quantum communication sub-systems, equivalent to their telecom wavelength counterparts. The method proposed involves rotating the optic axis of the polarized input light by an angle of 45 degree, thereby converting the fundamental transverse electric (TE0) mode to the fundamental transverse magnetic (TM0) mode. This paper outlines an integrated gallium phosphide-waveguide polarization rotator, which relies on the rotation of a horizontal slot by 45 degree at a wavelength of 700 nm. This will ultimately lead to the conception of a mode hybridization phenomenon in the waveguide. The simulation results demonstrate a polarization conversion efficiency of 99.99% (99.98%) for TE0-to-TM0 (TM0-to-TE0) mode conversion, with an extinction ratio of 46.14 (39.62) dB and insertion loss below 1.6 dB at the specified wavelength. Additionally, the fabrication tolerance with regard to the width, height, and half-beat length of the proposed structure is investigated.

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Key rate estimation of measurement-device-independent quantum key distribution protocol in satellite-earth and intersatellite links

Cited by 6 publications

References 17 publications

Modeling and Simulation for Performance Evaluation of Optical Quantum Channels in Quantum key Distribution Systems

Modeling and Simulation for Performance Evaluation of Optical Quantum Channels in Quantum key Distribution Systems

Security and communication distance improvement in decoy states based quantum key distribution using pseudo-random bases choice for photon polarization measurement

Integrated gallium phosphide-waveguide polarization rotator based on rotating a horizontal slot by 45 degree for 700 nm wavelength

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