Adarsh Kumar (editor) - Quantum and Blockchain for Modern Computing Systems: Vision and Advancements: Quantum and Blockchain Technologies: Current Trends and Challenges ... and Communications Technologies, 133)

The aim of the book series is to present cutting edge engineering approaches to data technologies and communications. It will publish latest advances on the engineering task of building and deploying distributed, scalable and reliable data infrastructures and communication systems.

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In recent decades, advancements in Blockchain and quantum technology have been the subject of technical, professional and business discussions in a variety of venues. As a result of these technologies and their combination with other valuable technologies of recent years, several applications and abilities have been created, including the ability to provide transparent and redundant safe, responsible, and efficient settings. For example, Blockchain technology provides a secure, distributed, peer-to-peer and decentralised network that is based on sophisticated cryptographic primitives and protocols that may be used to transact in real time. These cryptographic primitives and protocols aid in the achievement of high-security needs that are resource-dependent. Quantum physics and Blockchain solutions may now be merged with other technologies. These include Internet of Things (IoT), cloud/fog/edge computing, Serverless computing and Next Generation Networks. Incorporating diverse technologies requires comparative study, rules and application-specific use. Thus, our work encourages people from other sectors to develop technology-integrated solutions that are low-cost, high-quality, secure and fulfil future expectations. As a conclusion, this book helps readers and practitioners develop abilities in developing next generation systems based on security cryptographic primitives and protocols. Finally, IT professionals may use this study to better understand the need for technological transitions and quantum computing activities. Constructing quantum computing systems and communicating with them are novel technological features that may greatly affect future applications. Among research challenges, this book provides a comprehensive study over those approaches that improve quantum computing and cryptography protocols. For example, Quantum Key Distribution methods are studied and improved using security proofs against individual and collective computing environments. These computing environments can help in producing more than a few GB/s of security bits in the computing world that are sufficient to protect the network against quantum attacks. This book provides strong knowledge insight into various issues identified about Quantum and Blockchain networks and helps to develop solutions towards trust management in a secure network, quantum computing and quantum science, quantum memories, quantum repeaters and many more. This book aims to provide technical insight into Quantum and Blockchain technology aspects such as the current state-of-the-art requirements, performance, evaluation and challenging aspects, to the readers in one place. The book is organised as follows:

Chapter presents fundamental quantum information science ideas and methods and how these concepts and tools may be helpful to quantum Blockchain technology. Starting with quantum mechanics postulates, which define the theory's fundamental laws that deviate from classical mechanics. Next, this chapter introduces the abstract concepts of quantum information science. Next, this work presented multiple controlled Tooli gates, which may be used in quantum computing and quantum Blockchain. Further, this chapter discusses quantum error correction, a method for protecting qubits (quantum information units) from environmental noise and developing fault-tolerant quantum technology.

Chapter expands on the concept of quantum technology introduced in the preceding chapter. The main responsibilities of quantum information processing are quantum communication and quantum sensing. Quantum data is further separated into quantum cryptography and quantum Blockchain. Quantum cryptography discusses the security of quantum cryptosystems. Quantum Blockchain is a decentralised, distributed and public digital ledger in quantum world. Finally, quantum sensing emerges from quantum mechanical particles/systems like photons.