With the continuous development of Time-Sensitive Networking (TSN) technology, ensuring the determinism and security of the network has become a focal point in the industry. The emergence of quantum secure communication technology offers a new opportunity for enhancing the security of TSN. First, this paper introduces the significance and advantages of integrating TSN technology with Quantum Key Distribution (QKD) networks. Then, it proposes secure communication schemes based on QKD technology, specifically addressing the security protection of time-sensitive service information, synchronization information, and control information within TSN.
Quantum computing is at a critical stage of parallel development in theoretical research, engineering development, application exploration, and industrialization cultivation. The hardware performance of quantum computing processors still cannot meet the requirements of solving large-scale application problems. Quantum-classical fused computing combines the advantages of quantum computing and classical computing, providing new ideas and methods for solving certain complex problems, and gradually becoming a research highlight. Firstly, this paper analyzes the concept, key technologies, and current development situation of quantum-classical fused computing. Then, it looks forward to the development trend of quantum-classical fused computing. Finally, it puts forward corresponding suggestions to promote the high-quality development of quantum-classical fused computing.
The development of quantum computing technology enables powerful parallel computing that surpasses existing classical computing. Practical quantum computing technology will have broad and profound impacts on various industries through its computational power. Currently, quantum computing cloud platforms are the mainstream form for delivering quantum computing capabilities and exploring quantum computing applications. This article analyzes the current development and application of quantum computing cloud platforms both domestically and internationally. It proposes new strategies for building a quantum computing application ecosystem based on cloud platforms and offers suggestions for future development to overcome the main challenges.
Quantum computing has been theoretically proven to have a public key cryptography cracking capability that far exceeds that of classical computing. In recent years, the rapid development of quantum computing has triggered the information security threat of public key cryptography, which has become raising concern for the global information security authorities and the Information and Communications Technology (ICT) industries. This paper first analyzes the information security threats and impacts of quantum computing. Then, it discusses the technical characteristics and application trends of the two main countermeasures, namely, post quantum cryptography (PQC) and quantum key distribution (QKD). Finally, it puts forward the development suggestions for dealing with the information security threats of quantum computing.
Quantum information technology is significant for national security and technological development, and has become a key field for countries/regions to incorporate into their national development strategies and application layouts in recent years. In the face of the innovative development situation of quantum information technology in China, this article searches for patent data information in various fields of quantum information technology on a global scale. Through dimensions such as patent application trends, technology sources, geographical layout, and main applicants, this article analyzes the current development situation of quantum information technology both domestically and internationally, and provides reasonable suggestions for the further development of quantum information technology in China.
With increased investment in policy layout by multiple countries and regions in recent years, rapid development in quantum computing technology research, application exploration, and industrial cultivation offers promising potential for exponential acceleration in solving some computationally complex problems. Quantum computing has emerged as one of the vital directions for future leaps in computing power. This paper sorts out the policy layout in the field of quantum computing at home and abroad, analyzes the technological progress, application exploration, and the current status of industrial cultivation, and looks forward to the future development trend.
Since 2000, quantum random number generators (QRNGs) have been receiving increasing attention. Compared to random number generators based on algorithms or classical systems, QRNGs derive their randomness from quantum sources, which are not described by algorithms or equations deterministically but are described by wave functions probabilistically, exhibiting intrinsic randomness. Currently, most QRNGs are based on photonic systems. In recent years, electronic Quantum Random Number Generator (eQRNG) schemes have been proposed. Compared to photonic QRNGs, eQRNGs do not involve electrical-optical-electrical conversion, effectively avoiding the influence of classical noise during the conversion process. This provides an obvious benefit in randomness. Furthermore, the advantages of eQRNGs lie in simple structure, stability, compatibility with semiconductor technology, and the potential for integration. This paper introduces the progress of eQRNGs based on the quantum tunneling effect, including eQRNGs based on tunnel diode, van der Waals heterojunction, and avalanche photodiode. This paper also elaborates on the advantages of eQRNGs in randomness.
Blockchain technology ensures data security, integrity, and traceability through decentralization and distributed databases, with core components including distributed ledgers, encryption technology, and consensus mechanisms. The Byzantine agreement protocol, as a key component, is crucial for maintaining the security and consistency of decentralized networks. However, the rapid development of quantum computing threatens the security of classical Byzantine agreement protocols and their inability to surpass the 1/3 fault tolerance bound, making the study of quantum Byzantine agreement protocols necessary. This paper discusses the challenges faced by classical Byzantine agreement protocols in the quantum computing era and introduces the development and practical challenges of detectable quantum Byzantine agreement. It focuses on the recently proposed new quantum Byzantine consensus protocol based on quantum digital signatures, which breaks the 1/3 fault-tolerance bound, offers information-theoretic security, and is experimentally feasible. Finally, it discusses the constraints of the blockchain trilemma on Byzantine agreement and looks forward to the development of quantum Byzantine agreement protocols and their prospects for decentralized communication and computation in quantum networks.
Quantum computing, as an emerging computing paradigm based on the principles of quantum mechanics, is showing enormous potential in solving complex problems. Firstly, the integration of quantum computing and classical computing, as well as the application of distributed quantum computing in implementing large-scale quantum systems, are discussed; secondly, a comprehensive analysis is conducted on the architecture and functions of quantum operating systems, in order to provide researchers, technology developers, policy makers, and readers interested in quantum computing with a holistic perspective on the current status and future potential of quantum computing.
With the rapid development of artificial intelligence, many industries require massive computational power as technical support. Low-energy optical computing and quantum computing have emerged as the most promising solution for high-speed and large-scale data processing in the future. The optical parametric oscillations pulses are used as the computational bits in coherent Ising computing. A coherent Ising machine based on optical parametric oscillation can search for spin configurations at the ground state of the Ising model, thereby improving the computational speed and accuracy in solving combinatorial optimization problems. The improved coherent Ising machine can overcome the limitations of local minima, and its test results on large-scale combinatorial optimization problems have surpassed some classical algorithms, providing a new direction for solving various combinatorial optimization problems.
Rydberg atom is becoming a new means of electromagnetic detection. This paper reviews the latest research progress of Rydberg atom in the field of electric field measurement and its application in digital communication, microwave metrology and imaging. Using the electromagnetically induced transparency of Rydberg atoms and the Autler-Townes (AT) splitting effect, the intensity, polarization, phase and arrival angle of the microwave field can be measured almost without disturbance. As an “atomic antenna”, the Rydberg Atomic Electromagnetic Detection system can be traced directly to the International System of Units to achieve accurate microwave radio metrology, and has proven its feasibility in the field of digital communications, enabling high-resolution near-field and far-field imaging at scales far smaller than RF wavelengths.