Article
Engineering, Electrical & Electronic
Ajmeera Kiran, P. N. Renjith, Sapna Gupta, Srinivas Ambala, Preethi Sambandam Raju, Drakshayani Sriramsetti
Summary: Due to the prevalence of social media, internet websites, and cellular networks, the world is experiencing a digital revolution. Big data analytics can filter large amounts of unprocessed data to provide more manageable information for intelligent decision-making. This research showcases the significance of large geographical datasets in cutting-edge wireless communication technologies and highlights the differences between geospatial and interpersonal concerns in massive datasets. The study presents three significant geospatial information use cases and explores the development of highly available multi-processing systems for geographical information using Hadoop. The findings demonstrate the scalability of spatial data analysis methodologies in Hadoop but emphasize the need for simpler alternatives due to the specialized skills required.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Mohd Ashraf, Mainuddin Mainuddin, Mirza Tariq Beg, Fiza Moin, Ananta Saikia, Sanjai K. Dwivedi, Gagan Kumar
Summary: Evanescent wave optical fibre sensors have gained attention for their sensitivity, selectivity, and repeatability in detecting chemical species. In this study, a U-shaped optical fibre sensor utilizing evanescent wave absorption was developed for measuring phosphate concentration in water. By optimizing the sensor's geometry, the sensitivity was improved.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
A. M. El-Naggar, Zein K. Heiba, A. M. Kamal, Mohamed Bakr Mohamed
Summary: In this study, the optical and electrical characteristics of a PVP/CMC blend were improved by doping with hydrogen titanate nanotubes (HTNT) and tetramethylammonium iodide (TMAI) for adaptable eco-friendly applications. The doping led to an enhancement in absorption, a reduction in transmittance, a decrease in bandgaps, an increase in refractive index, and had effects on the fluorescence intensities, CIE chromaticity coordinates, and capacitive nature of the blend. The AC conductivity reached its highest value with 0.15 wt% TMAI doping.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Shuvajit Roy, Kapil Debnath
Summary: In this article, a graphene-based electromechanically tunable perfect absorber design is proposed and numerically investigated. By applying external voltages, the resonance absorption wavelength of the graphene layer can be shifted due to the deflection of the free-standing region. It is demonstrated that a wide shift in resonance wavelength can be achieved with a low actuation voltage in the mid-infrared region.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Thi Tran Anh Tuan, Phan Thanh Hung, Truong Thi Ngoc Chinh, Nguyen Van Sau, Le Thi Ngoc Tu, Van Cuong Nguyen, Dang Huu Phuc
Summary: By optimizing and doping Cu in CdS/CdSe multilayer films, the performance of quantum dot solar cells has been improved. Analysis of optical and electrical parameters indicates that increasing Cu doping concentration can enhance the efficiency of the devices.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Manar S. Ahmed, Afaf A. S. Zaghrout, Hamdy M. Ahmed
Summary: This paper studies the propagation of optical solitons in optical fibers, using the improved modified extended tanh-function method to obtain various types of analytical solutions.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Shayna Kumari, Shanthi Prince
Summary: The evolution of 5G millimeter wave technology offers higher bandwidth and faster data speeds, but faces limitations due to path loss. Beamforming technology is proposed in this paper to overcome this issue, providing a wide range of beam control angles and time delays.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Pingping Shan, Zheng Zhang
Summary: This paper proposes a distributed computing model for channel bandwidth allocation and optimization, which combines computational intelligence and deep learning techniques to optimize resource allocation. By considering user requirements and resource availability, the proposed scheme achieves efficient allocation and optimization of channel bandwidth. The effectiveness of this scheme is demonstrated through extensive simulations and performance analysis, showing improvements in resource utilization, throughput, fairness, and energy efficiency.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Dean Chou, Hamood Ur Rehman, Aamna Amer, Aatika Amer
Summary: In this study, the Sardar sub-equation method is used to obtain solitary wave solutions for generalized fractional Tzitzeica type equations, resulting in a wide variety of soliton solutions. These solutions shed light on the intricate dynamics of these evolution equations.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Emmanuel Kengne
Summary: In this paper, we study a higher-order nonlinear Schrodinger equation that describes the evolution of ultrashort optical pulses in nonlinear media. We analyze the modulational stability of the continuous-wave background and establish the condition for baseband modulational instability. Using a phase-imprint transformation and a novel form of chirping, we present solitary wavelike solutions that describe chirped soliton propagation on a nonzero continuous wave background. We show that the nonlinear chirp of each optical pulse is directly related to the wave intensity and depends on higher-order nonlinearities. The existence of embedded chirped nonlinear waves is discussed in terms of optical material parameters. In addition, we demonstrate how to manipulate the free parameter of the second-order rogue wave solution to create different types of rogue waves.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Ziyi Huang, Fan Qin, Zhengyi Li
Summary: In this study, a Modified Paillier-assisted Advanced Encryption Standard (MP-AES) technique is proposed to enhance the security of optical communication. By combining the Paillier cryptosystem with the AES algorithm, secure computations can be performed on AES-encrypted keys. The suggested approach incorporates dynamic key creation and significant changes to the established Paillier system and the AES method, improving unpredictability and defense against cryptographic attacks. Comprehensive simulations demonstrate the increased security and manageable processing burden of the updated approach.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Quantum Science & Technology
Daniel Pereira, Margarida Almeida, Armando N. Pinto, Nuno A. Silva
Summary: This study investigates the impact of imperfections at the transmitter stage on the performance and security of a Discrete Modulated Continuous-Variable Quantum Key Distribution (DM-CV-QKD) system. The results show that non-monitored imbalances greatly reduce the system's performance and may result in the inability to obtain secure bits. Therefore, monitoring and optimizing the constellation imbalances are crucial for the system.
EPJ QUANTUM TECHNOLOGY
(2023)
Article
Quantum Science & Technology
Chong-Qiang Ye, Jian Li, Xiu-Bo Chen, Yanyan Hou, Zhuo Wang
Summary: In this paper, a semi-quantum key distribution (SQKD) protocol based on Bell states and single particles is proposed for key distribution between different types of users. The protocol enables simultaneous key distribution between quantum and classical users, as well as key establishment between two classical users. Security analysis demonstrates that the protocol can achieve the same level of security as the full quantum protocol. Furthermore, the proposed protocol can be extended to other semi-quantum protocols, fulfilling their respective requirements individually.
EPJ QUANTUM TECHNOLOGY
(2023)
Article
Quantum Science & Technology
Shuang Dong, Shang Mi, Qingcheng Hou, Yutao Huang, Jindong Wang, Yafei Yu, Zhengjun Wei, Zhiming Zhang, Junbin Fang
Summary: Semi-quantum key distribution refers to a system where a fully quantum user and a classical user perform key distribution. Its main advantage is security. However, due to technological limitations, highly attenuated lasers and threshold detectors are needed, making it susceptible to eavesdropping. In this study, we propose a semi-quantum key distribution channel model and evaluate its safety using Gottesman-Lo-Lutkenhaus-Preskill theory. We also demonstrate the vulnerability of the system to photon-number-splitting attacks and propose the use of decoy states for increased security.
EPJ QUANTUM TECHNOLOGY
(2023)
Review
Computer Science, Artificial Intelligence
Lirande Pira, Chris Ferrie
Summary: Deep neural networks are a promising machine learning technique, and distributed deep learning is used to train large-scale models or datasets. Quantum machine learning combines machine learning and quantum computing to develop new algorithms. Quantum neural networks are explored in quantum machine learning. This review examines the application of distributed techniques to quantum neural networks and discusses the similarities and vulnerabilities of quantum data. The current state of distributed quantum neural networks, including numerical experiments and circuit-cutting, is reviewed.
QUANTUM MACHINE INTELLIGENCE
(2023)
Correction
Engineering, Electrical & Electronic
Yage Liu, Yingjie Ma, Xue Li, Yi Gu, Yonggang Zhang, Haimei Gong, Jiaxiong Fang
IEEE JOURNAL OF QUANTUM ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Matthew Seitz, Matthew Hartensveld, Bryan Melanson, Jacob Boisvere, Jing Zhang
Summary: We report on the realization of a uniform array of electrically driven, individually addressable micro light-emitting diodes (mu LEDs) with diameters of 2.5 μm emitting at 372 nm. This highly ordered array was fabricated via a top-down fabrication approach using a novel Ni/Au/Ni structure. The use of this novel structure allows individual mu LEDs to be addressed with promising electroluminescence intensity and narrow linewidth at ultraviolet-A (UV-A) band. This improved control over mu LED output power and emission location makes our approach an important step towards the development of high efficiency UV-A mu LEDs for a range of applications.
IEEE JOURNAL OF QUANTUM ELECTRONICS
(2023)
Article
Computer Science, Theory & Methods
Ashwin Nayak, Henry Yuen
Summary: The paper investigates the characteristics of superdense coding protocols, showing that any protocol achieving this task is locally equivalent to the Bennett-Wiesner protocol. It also discusses the case of higher-dimensional superdense coding and the performance of protocols using encoding operators sampled from the Haar measure.
ACM TRANSACTIONS ON QUANTUM COMPUTING
(2023)
Article
Engineering, Electrical & Electronic
Changpeng Li, Shaoshuai Sui, Feng Gao, Yiming Wang, Xiao Xu, Jia Zhao
Summary: We present a widely wavelength tunable laser (III-V/Si) that covers the entire L-band for optical communication systems. By optimizing the design of the silicon ring filter, we achieve low threshold current and high output power. We fabricate a silicon filter chip using the standard silicon photonic process and package it compactly with a reflective semiconductor optical amplifier. The experimental results demonstrate a large wavelength tuning range, high side-mode suppression ratio, and potential for coherent communications.
IEEE JOURNAL OF QUANTUM ELECTRONICS
(2023)
Article
Quantum Science & Technology
Hojoong Park, Byung Kwon Park, Min Ki Woo, Min-Sung Kang, Ji-Woong Choi, Ju-Sung Kang, Yongjin Yeom, Sang-Wook Han
Summary: This study presents an entity authentication protocol for quantum key distribution (QKD) network systems using authentication qubits encoded with pre-shared information. The proposed protocol can be easily integrated with existing QKD systems and operates stably over a deployed fiber network.
EPJ QUANTUM TECHNOLOGY
(2023)