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Quantum Chemistry of Nanotubes: Electronic Cylindrical Waves

by Pavel N. D'yachkov

This book gives a detailed and up-to-date overview of the linearized augmented cylindrical wave (LACW) technique for nanotubes and nanowires. The author presents the mathematical foundations together with numerous applications. Method for calculating the electronic structure of point impurities, which is based on a combination of the LACW and Green’s functions techniques, is presented. The book clearly demonstrates how the relativistic effects can be incorporated into LACW approach and how the spin-orbit coupling effects change the tubules band structure. Extensive illustrations of application to the inorganic nanotubes and nanowires make the book essential reading in this field above all.

Quantum Communication Networks (Foundations in Signal Processing, Communications and Networking #23)

by Frank H. Fitzek Holger Boche Christian Deppe Riccardo Bassoli Roberto Ferrara Gisbert Janssen Sajad Saeedinaeeni

This book provides a tutorial on quantum communication networks. The authors discuss current paradigm shifts in communication networks that are needed to add computing and storage to the simple transport ideas of prevailing networks. They show how these ‘softwarized’ solutions break new grounds to reduce latency and increase resilience. The authors discuss how even though these solutions have inherent problems due to introduced computing latency and energy consumption, the problems can be solved by hybrid classical-quantum communication networks. The book brings together quantum networking, quantum information theory, quantum computing, and quantum simulation.

Quantum Communication and Quantum Internet Applications

by Daniel Minoli Benedict Occhiogrosso

Quantum computing, particularly in conjunction with a high level of interconnectivity facilitated by quantum connectivity, can facilitate a host of new, previously unattainable applications—these include blind quantum computation, (information) teleporting, clock synchronization, quantum key distribution, secure access to remote quantum computers, superdense coding, secure identification, quantum-secure encryption, distributed sensors, and other scientific and commercial applications, including new drug development.Quantum Communication and Quantum Internet Applications is a basic introduction to quantum computing and presents the emerging foundations of quantum communications and applications. Written for telecommunications professionals, the book explains basic principles of quantum mechanics and strives to make quantum science accessible with a minimal mathematical investment. This book is a point of departure into the application of quantum computing and mechanics to communications. Features include: An introductory overview of quantum communications Basic and advanced mathematical concepts in quantum physics Basic physical technologies An overview of quantum computers and their role as nodes in the quantum internet (i.e., the Quaint) Quantum communications, including logical architectures and the Quaint Quantum-based security Software tools to develop networked quantum applications. Glossaries of terms and concepts. The book synthetizes background material on quantum computing so that telecom managers and other telecom professionals can get a basic understanding of this fast-emerging computing discipline and its application to telecom. It is a guide to the newly emerging fields of quantum communications, quantum internet, remote connectivity, and networking.

Quantum Communications

by Gianfranco Cariolaro

This book demonstrates that a quantum communication system using the coherent light of a laser can achieve performance orders of magnitude superior to classical optical communications Quantum Communications provides the Masters and PhD signals or communications student with a complete basics-to-applications course in using the principles of quantum mechanics to provide cutting-edge telecommunications. Assuming only knowledge of elementary probability, complex analysis and optics, the book guides its reader through the fundamentals of vector and Hilbert spaces and the necessary quantum-mechanical ideas, simply formulated in four postulates. A turn to practical matters begins with and is then developed by: · development of the concept of quantum decision, emphasizing the optimization of measurements to extract useful information from a quantum system; · general formulation of a transmitter-receiver system · particular treatment of the most popular quantum communications systems--OOK, PPM, PSK and QAM; · more realistic performance evaluation introducing thermal noise and system description with density operators; · consideration of scarce existing implementations of quantum communications systems and their difficulties with suggestions for future improvement; and · separate treatment of quantum information with discrete and continuous states. Quantum Communications develops the engineering student's exposure to quantum mechanics and shows physics students that its theories can have practically beneficial application in communications systems. The use of example and exercise questions (together with a downloadable solutions manual for instructors) will help to make the material presented really sink in for students and invigorate subsequent research.

Quantum Communications and Cryptography

by Alexander V. Sergienko

All current methods of secure communication such as public-key cryptography can eventually be broken by faster computing. At the interface of physics and computer science lies a powerful solution for secure communications: quantum cryptography. Because eavesdropping changes the physical nature of the information, users in a quantum exchange can easily detect eavesdroppers. This allows for totally secure random key distribution, a central requirement for use of the one-time pad. Since the one-time pad is theoretically proven to be undecipherable, quantum cryptography is the key to perfect secrecy.Quantum Communications and Cryptography is the first comprehensive review of the past, present, and potential developments in this dynamic field. Leading expert contributors from around the world discuss the scientific foundations, experimental and theoretical developments, and cutting-edge technical and engineering advances in quantum communications and cryptography. The book describes the engineering principles and practical implementations in a real-world metropolitan network as well as physical principles and experimental results of such technologies as entanglement swapping and quantum teleportation. It also offers the first detailed treatment of quantum information processing with continuous variables. Technologies include both free-space and fiber-based communications systems along with the necessary protocols and information processing approaches. Bridging the gap between physics and engineering, Quantum Communications and Cryptography supplies a springboard for further developments and breakthroughs in this rapidly growing area.

Quantum Communications in New Telecommunications Systems

by Malek Benslama Achour Benslama Skander Aris

This book addresses quantum communications in the light of new technological developments on photonic crystals and their potential applications in systems. We begin with a state of the art on extensive quantum communications. The quantum gates such as Deutsch gates, Toffoli gates, Dedekind gates are reviewed and exposed. We examine their feasibility as electronic circuits and their implementation in systems, a comparison is performed in parallel with conventional circuits such as FPGAs and DSPs. the specificities of quantum communication are also exposed through the entanglement and Bell states. Mathematical and physical aspects of quantum optical fibers and photonic crystals are considered in order to optimize the quantum transmissions. Two fundamentals elements are treated, reconfigurable optical add-drop multiplexer and WDM.

Quantum Computers: Theory and Algorithms

by Belal Ehsan Baaquie Leong-Chuan Kwek

This book presents various theories and algorithms to create a quantum computer. The concept of the classical and quantum computers, and the concept of circuits and gates are reviewed. The example of the Deutsch and the Deutsch-Josca algorithm is discussed to illustrate some key features of quantum computing. The Grover algorithm, considered to be of major milestone of the subject, is discussed in detail to exemplify the techniques used in computer algorithms. The role of quantum superposition (also called quantum parallelism) and of quantum entanglement is discussed in order to understand the key advantages of a quantum over a classical computer.

Quantum Computing Architecture and Hardware for Engineers: Step by Step

by Hiu Yung Wong

The purpose of this book is to teach quantum computing hardware from an engineer’s perspective. Engineers play an important role in quantum computers. However, college and graduate engineering students usually do not have the required physics and mathematics training to understand how quantum computer hardware works. This book provides step-by-step guidance to connect engineers to the quantum world. Prepares readers with the essential mathematics and physics skills to understand and design quantum computers. Covers spin qubits and superconducting qubits in a unified framework. Uses language accessible to readers with varying backgrounds and a step-by-step approach. Includes simulation codes and superconducting quantum chip design examples. Discusses step-by-step the physics, mathematics, and their connection to microwave electronics based on how they fulfill the five DiVincenzo’s criteria.

Quantum Computing Environments

by Sitharama S. Iyengar Mario Mastriani K. J. Latesh Kumar

This book explains the evolution of techniques and strategies in quantum computing, discussing the digital transition towards the quantum computing application in various sectors. The book provides a comprehensive insight into the quantum mechanics and quantum computing techniques and tools and how they have evolved and the impacted in supporting and flourishing business during the quantum computing era. This book includes chapters that discuss the most primitive quantum schemes to the most recent use of Internet, finance and radar technology, thus leveraging greater use of new technologies like security and Internet and others. The content is relevant for an audience that is involved in the research and development of advanced quantum systems. It gives the industry, researchers, and students interested in learning the various quantum computing sectors with the necessary information and tools that can be used to research, design and develop advanced quantum computing systems and techniques.

Quantum Computing: A Shift from Bits to Qubits (Studies in Computational Intelligence #1085)

by Neeraj Kumar Singh Rajiv Pandey Nidhi Srivastava Kanishka Tyagi

The edited book is a consolidated handbook on quantum computing that covers quantum basic science and mathematics to advanced concepts and applications of quantum computing and quantum machine learning applied to diverse domains. The book includes dedicated chapters on introduction to quantum computing, its practical applications, the working behind quantum systems, quantum algorithms, quantum communications, and quantum cryptography. Each challenge that can be addressed with quantum technologies is further discussed from theoretical and practical perspectives. The book is divided into five parts: Part I: Scientific Theory for Quantum, Part II: Quantum Computing: Building Concepts, Part III: Quantum Algorithms- Theory & Applications, Part IV: Quantum Simulation Tools & Demonstrations, and Part V: Future Direction and Applications.

Quantum Computing: Applications and Challenges (Information Systems Engineering and Management #2)

by Farouk Yalaoui Habiba Drias

This book is intended for academics, researchers, Ph.D. students, and industrials to learn about quantum computing and prepare them to understand the future with its cutting-edge tools. Quantum computing holds great promise in terms of human life quality especially when combined with artificial intelligence. In addition to quantum computing, the book focuses on quantum artificial intelligence, quantum machine and deep learning, quantum cryptography, and quantum logistics optimization. Applications in weather forecasting, digital soil mapping, skin lesion classification, combinatorial optimization, and urgent transportation, among others, are presented.

Quantum Computing: Circuits, Systems, Automation and Applications

by Himanshu Thapliyal Travis Humble

This book provides readers with the current state-of-the-art research and technology on quantum computing. The authors provide design paradigms of quantum computing. Topics covered include multi-programming mechanisms on near-term quantum computing, Lagrange interpolation approach for the general parameter-shift rule, architecture-aware decomposition of quantum circuits, software for massively parallel quantum computing, machine learning in quantum annealing processors, quantum annealing for real-world machine learning applications, queuing theory models for (Fault-Tolerant) quantum circuits, machine learning for quantum circuit reliability assessment, and side-channel leakage in Suzuki stack circuits.

Quantum Continuous Variables: A Primer of Theoretical Methods

by Alessio Serafini

Quantum Continuous Variables introduces the theory of continuous variable quantum systems, from its foundations based on the framework of Gaussian states to modern developments, including its applications to quantum information and forthcoming quantum technologies. This book addresses the theory of Gaussian states, operations, and dynamics in great depth and breadth, through a novel approach that embraces both the Hilbert space and phase descriptions.The second edition of this book has been revised throughout, and updated to include new topics, such as boson sampling, coherent feedback, nonlinear control, as well as several new solved problems.The volume includes coverage of entanglement theory and quantum information protocols, and their connection with relevant experimental set-ups. General techniques for non-Gaussian manipulations also emerge as the treatment unfolds and are demonstrated with specific case studies.This book will be of interest to graduate students looking to familiarise themselves with the field, in addition to experienced researchers eager to enhance their understanding of its theoretical methods. It will also appeal to experimentalists searching for a rigorous but accessible treatment of the theory in the area.Features Provides the first systematic graduate-level textbook for the field of quantum continuous variables and includes 77 problems for the reader, with accompanying solutions Explores applications to entanglement theory, nonlocality, quantum technologies and quantum control Describes, in detail, a comprehensive list of experimental platforms where the formalism applies Alessio Serafini earned his PhD from the University of Salerno. He is currently a Professor at University College London. His research focuses mainly on quantum optics, quantum information with continuous variables, and the theory of quantum control.

Quantum Critical Phenomena of Valence Transition: Heavy Fermion Metals and Related Systems (Springer Tracts in Modern Physics #289)

by Shinji Watanabe Kazumasa Miyake

This book comprehensively presents an unconventional quantum criticality caused by valence fluctuations, which offers theoretical understanding of unconventional Fermi-liquid properties in cerium- and ytterbium-based heavy fermion metals including CeCu2(Si,Ge)2 and CeRhIn5 under pressure, and quasicrystal β-YbAlB4 and Yb15Al34Au51. The book begins with an introduction to fundamental concepts for heavy fermion systems, valence fluctuation, and quantum phase transition, including self-consistent renormalization group theory. A subsequent chapter is devoted to a comprehensive description of the theory of the unconventional quantum criticality based on a valence transition, featuring explicit temperature dependence of various physical quantities, which allows for comparisons to relevant experiments. Lastly, it discusses how ubiquitous the valence fluctuation is, presenting candidate materials not only in heavy fermions, but also in strongly correlated electrons represented by high-Tc superconductor cuprates. Introductory chapters provide useful materials for learning fundamentals of heavy fermion systems and their theory. Further, experimental topics relevant to valence fluctuations are valuable resources for those who are new to the field to easily catch up with experimental background and facts.

Quantum Dot Devices

by Zhiming M. Wang

Quantum dots as nanomaterials have been extensively investigated in the past several decades from growth to characterization to applications. As the basis of future developments in the field, this book collects a series of state-of-the-art chapters on the current status of quantum dot devices and how these devices take advantage of quantum features. Written by 56 leading experts from 14 countries, the chapters cover numerous quantum dot applications, including lasers, LEDs, detectors, amplifiers, switches, transistors, and solar cells. Quantum Dot Devices is appropriate for researchers of all levels of experience with an interest in epitaxial and/or colloidal quantum dots. It provides the beginner with the necessary overview of this exciting field and those more experienced with a comprehensive reference source.

Quantum Dot Display Science and Technology (Wiley Series in Display Technology)

by Ruiqing Ma Paul Alivisatos Eunjoo Jang

COMPREHENSIVE REFERENCE PRESENTING ALL ASPECTS OF QUANTUM DOT-BASED DISPLAY TECHNOLOGIES IN FOUR PARTS, SUPPORTED WITH PEDAGOGICAL FEATURES Quantum Dot Display Science and Technology presents all aspects of quantum dot (QD) based display technologies, divided into four general topic areas: the basic science of quantum dots, QD photoluminescent technologies, QD electroluminescent technologies, and other display related QD technologies. Composed of 14 chapters, this book includes a list of pedagogical features such as tables, illustrations, process flow charts, and more to provide active learning for the reader. This book also includes information on future quantum dot displays and the major milestones in the field. Quantum Dot Display Science and Technology discusses topics including: The basic physics and photophysics of QD, explaining why QD can offer better color and higher brightnessQD material systems and compositional families as well as principles and practices of QD synthesisQuantum dot enhancement film and quantum dot color conversion for LCDs, OLEDs, and μLEDsQuantum dot electroluminescent displays and QD-LED panel processes based on ink-jet printing and lithographyQD for lighting and photodetector applicationsFuture outlook for QD displays Published in partnership with the Society for Information Display (SID), Quantum Dot Display Science and Technology is the perfect resource for updated information on quantum dots and their applications for professionals working in displays, consumer electronics, and product design and development.

Quantum Dot Lasers on Silicon: Nonlinear Properties, Dynamics, and Applications (Springer Theses)

by Bozhang Dong

This book provides guidelines and design rules for developing high-performance, low-cost, and energy-efficient quantum-dot (QD) lasers for silicon photonic integrated circuits (PIC), optical frequency comb generation, and quantum information systems. To this end, the nonlinear properties and dynamics of QD lasers on silicon are investigated in depth by both theoretical analysis and experiment. This book aims at addressing four issues encountered in developing silicon PIC: 1) The instability of laser emission caused by the chip-scale back-reflection. During photonic integration, the chip-scale back-reflection is usually responsible for the generation of severe instability (i.e., coherence collapse) from the on-chip source. As a consequence, the transmission performance of the chip could be largely degraded. To overcome this issue, we investigate the nonlinear properties and dynamics of QD laser on Si in this book to understand how can it be applied to isolator-free photonic integration in which the expensive optical isolator can be avoided. Results show that the QD laser exhibits a high degree of tolerance for chip-scale back-reflections in absence of any instability, which is a promising solution for isolator-free applications. 2) The degradation of laser performance at a high operating temperature. In this era of Internet-of-Thing (IoT), about 40% of energy is consumed for cooling in the data center. In this context, it is important to develop a high-temperature continuous-wave (CW) emitted laser source. In this book, we introduce a single-mode distributed feedback (DFB) QD laser with a design of optical wavelength detuning (OWD). By taking advantage of the OWD technique and the high-performance QD with high thermal stability, all the static and dynamical performances of the QD device are improved when the operating temperature is high. This study paves the way for developing uncooled and isolator-free PIC. 3) The limited phase noise level and optical bandwidth of the laser are the bottlenecks for further increasing the transmission capacity. To improve the transmission capacity and meet the requirement of the next generation of high-speed optical communication, we introduce the QD-based optical frequency comb (OFC) laser in this book. Benefiting from the gain broadening effect and the low-noise properties of QD, the OFC laser is realized with high optical bandwidth and low phase noise. We also provide approaches to further improve the laser performance, including the external optical feedback and the optical injection. 4) Platform with rich optical nonlinearities is highly desired by future integrated quantum technologies. In this book, we investigate the nonlinear properties and four-wave mixing (FWM) of QD laser on Si. This study reveals that the FWM efficiency of QD laser is more than ten times higher than that of quantum-well laser, which gives insight into developing a QD-based silicon platform for quantum states of light generation. Based on the results in this book, scientists, researchers, and engineers can come up with an informed judgment in utilizing the QD laser for applications ranging from classical silicon PIC to integrated quantum technologies.

Quantum Dot Molecules

by Zhiming M. Wang Jiang Wu

A quantum dot molecule (QDM) is composed of two or more closely spaced quantum dots or "artificial atoms. " In recent years, QDMs have received much attention as an emerging new artificial quantum system. The interesting and unique coupling and energy transfer processes between the "artificial atoms" could substantially extend the range of possible applications of quantum nanostructures. This book reviews recent advances in the exciting and rapidly growing field of QDMs via contributions from some of the most prominent researchers in this scientific community. The book explores many interesting topics such as the epitaxial growth of QDMs, spectroscopic characterization, and QDM transistors, and bridges between the fundamental physics of novel materials and device applications for future information technology. Both theoretical and experimental approaches are considered. Quantum Dot Molecules can be recommended for electrical engineering and materials science department courses on the science and design of advanced and future electronic and optoelectronic devices.

Quantum Dot Optoelectronic Devices (Lecture Notes in Nanoscale Science and Technology #27)

by Zhiming M. Wang Peng Yu

This book captures cutting-edge research in semiconductor quantum dot devices, discussing preparation methods and properties, and providing a comprehensive overview of their optoelectronic applications. Quantum dots (QDs), with particle sizes in the nanometer range, have unique electronic and optical properties. They have the potential to open an avenue for next-generation optoelectronic methods and devices, such as lasers, biomarker assays, field effect transistors, LEDs, photodetectors, and solar concentrators. By bringing together leaders in the various application areas, this book is both a comprehensive introduction to different kinds of QDs with unique physical properties as well as their preparation routes, and a platform for knowledge sharing and dissemination of the latest advances in a novel area of nanotechnology.

Quantum Dot Photodetectors (Lecture Notes in Nanoscale Science and Technology #30)

by Zhiming M. Wang Xin Tong Jiang Wu

This book presents a comprehensive overview of state-of-the-art quantum dot photodetectors, including device fabrication technologies, optical engineering/manipulation strategies, and emerging photodetectors with building blocks of novel quantum dots (e.g. perovskite) as well as their hybrid structured (e.g. 0D/2D) materials. Semiconductor quantum dots have attracted much attention due to their unique quantum confinement effect, which allows for the facile tuning of optical properties that are promising for next-generation optoelectronic applications. Among these remarkable properties are large absorption coefficient, high photosensitivity, and tunable optical spectrum from ultraviolet/visible to infrared region, all of which are very attractive and favorable for photodetection applications. The book covers both fundamental and frontier research in order to stimulate readers' interests in developing novel ideas for semiconductor photodetectors at the center of future developments in materials science, nanofabrication technology and device commercialization. The book provides a knowledge sharing platform and can be used as a reference for researchers working in the fields of photonics, materials science, and nanodevices.

Quantum Dot Solar Cells

by Zhiming M. Wang Jiang Wu

The third generation of solar cells includes those based on semiconductor quantum dots. This sophisticated technology applies nanotechnology and quantum mechanics theory to enhance the performance of ordinary solar cells. Although a practical application of quantum dot solar cells has yet to be achieved, a large number of theoretical calculations and experimental studies have confirmed the potential for meeting the requirement for ultra-high conversion efficiency. In this book, high-profile scientists have contributed tutorial chapters that outline the methods used in and the results of various quantum dot solar cell designs, including quantum dot intermediate band solar cells, hot electron quantum dot solar cells, quantum-dot sensitized solar cells, colloidal quantum dot solar cells, hybrid polymer-quantum dot solar cells, and MEG quantum dot solar cells. Both theoretical and experimental approaches are described. Quantum Dot Solar Cells helps to connect the fundamental laws of physics and the chemistry of materials with advances in device design and performance. The book can be recommended for a broad audience of chemists, electrical engineers, and materials scientists, and is suitable for use in courses on materials and device design for advanced and future optoelectronics.

Quantum Dots Based Nanocomposites: Design, Fabrication and Emerging Applications (Engineering Materials)

by Sabu Thomas Poushali Das Sayan Ganguly

This book covers the recent advancements in quantum research and nanotechnology. The chapters investigate the synthesis, design, and applications of quantum dots in nanocomposites, presenting a comprehensive exploration of their principles, manufacturing processes, and diverse applications in electronics, photonics, energy, medicine, and beyond. With a focus on both theoretical foundations and practical insights derived from recent research, the book delves into the distinctive quantum mechanical characteristics of quantum dots, diverse fabrication methods, and the various possibilities emerging from their combination with various matrices. This book offers a captivating blend of theoretical knowledge and practical observations.

Quantum Dots and Polymer Nanocomposites: Synthesis, Chemistry, and Applications

by Jyotishkumar Parameswaranpillai Poushali Das Sayan Ganguly

Quantum Dots and Polymer Nanocomposites: Synthesis, Chemistry, and Applications reviews the properties, fabrication, and current and potential users of quantum dots-based polymer composites. It offers a much-needed update on the essential components of polymer nanocomposites by exploring the synthesis, processing, classification, characterisation, and applications of quantum dots. Topics include modern fabrication technologies, processing, nanostructure formation, and the mechanisms of reinforcement. This book also covers biocompatibility, suitability, and toxic effects of quantum dots-based polymer nanocomposites. Applications such as biomedical, pollution mitigation, sensors, and catalysis are explored, as are opportunities and future research directions. This edited book acts as a one-stop reference book for researchers, academics, advanced students, and scientists studying epoxy blends. It will be of interest to materials scientists, polymer technologists, nanotechnologists, chemical engineers, physicists (optics, plasmonics), chemists, and mechanical engineers, among others.

Quantum Dots for DNA Biosensing

by Jun-Jie Zhu Jing-Jing Li Hai-Ping Huang Fang-Fang Cheng

This book provides a broad introduction to all major aspects of quantum dot properties including fluorescence, electrochemical, photochemical and electroluminescence. Such properties have been produced for applications in biosensing, cell tracking, in vivo animal imaging and so on. It focuses on their special applications in DNA biosensing and provides readers with detailed information on the preparation and functionalization of quantum dots and the fabrication of DNA biosensors, using examples to show how these properties can be used in DNA biosensor design and the advantages of quantum dots in DNA biosensing. Further new emerging quantum dots such as metal nanoclusters and graphene dots and their applications in DNA biosensing have also been included.

Quantum Dots for Plant Systems (Nanotechnology in the Life Sciences)

by Abdul Majid Humaira Arshad Muhammad Azmat Khan

Quantum dots (QDs) are important in the research and industrial fields due to their diverse properties and technological importance. Recently, QDs have been found to be suitable for biological, biomedical, agricultural, and food science applications. Many research articles, review papers, and internet sources have published on the use of QDs to improve plant growth and yield, but a comprehensive overview in book form has not been available to date. This book provides detailed information on synthesis, functionalization, and the use of various types of quantum dots for plant systems. It also addresses the current state of knowledge on sensing mechanisms of QD-based biosensors used for microorganisms, including bacteria, fungi, and plant virus detection. This book also offers in-depth knowledge related to QDs used for plant growth, nutrients, and plant protection from micro-organisms. This volume is beneficial as one comprehensive resource for students, researchers, scientists, technicians, academicians, and industrialists.

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Showing 53,601 through 53,625 of 74,039 results