Dramatic developments in developing semiconductor device technology and nanotechnologies over the last decades has placed increasing demands on the fabrication and design of new electronic devices, It is now necessary to implement nanoscale gate geometries to achieve the highest performance standards in new devices. The need to understand and model the operation of nano-devices is, therefore, fundamental to future development and optimal design. From Semiclassical Semiconductors to Novel Spintronic Devices explains research related to new spintronic devices. This E-book: reports unique results on fabrication and the quite uncommon performance of Si-based solar cells with novel contacts chemically deposited on traditionally prepared semiconductor parts of the solar cell, details the mechanism behind efficient solar radiation conversion and the thermodynamics involved in theory and practice, discusses photonic condensate and relic radiation - exotic topics for theoretical astrophysics which also present possible power tools for achieving highly efficient energy conversion. This e-book is a useful review on the latest achievements in spintronic technology, characterization methods and nanoscaled active elements modeling for novel device design and applications The text within this e-book serves as a handy resource for graduate and PhD students as well as for professionals interested in the field of semiconductor device technology and modeling as well as spintronics.

This reference book explains the fundamentals of Bose Einstein Condensation (BEC) in excitons and polaritons. It presents five chapters exploring fundamental concepts and recent developments on the subject. Starting with a historical overview of BEC, the book progresses into the origins and behaviors of excitons and polaritons. Chapters also cover the unique thermalization and relaxation kinetics of excitons, and the distinctive features of polaritons, such as lasing, superfluidity, and quantized vortices. The chapters dedicated to BEC in excitons and polaritons detail experimental techniques, theoretical modeling, recent advancements, and practical applications in a simplified way for beginners. This book serves as a resource for researchers, physicists, and students interested in the phenomena of BEC, providing insights into both the theoretical foundations and the practical implications of excitons and polaritons.

Quantum physics is based on four fundamental interactions of electromagnetic, weak, gravitational and strong forces. All the interactions are expressed in terms of fermion and boson fields which can describe the quantum states of electrons, nucleons and photons in atoms or nuclei. Correct behaviors of these particles can now be described by the basic field theory terminology, and this textbook explains, for the first time, quantum field theory in a unifying method. At present, modern quantum theory is at a critical junction between different theories, and this textbook presents a clear description of fundamental quantum fields with a sound theoretical framework. No exotic theoretical concepts such as general relativity nor spontaneous symmetry breaking nor quantum anomaly are adopted in this textbook, and indeed all the observed physical quantities can be well understood within the standard field theory framework without introducing any non-physical particles or fields. From this textbook, readers will be guided through a concrete future direction of quantum field theory and will learn how the motion of electrons in any kind of material can be understood in terms of fields or state vectors. Readers will also learn about application of basic field theory in quantum chemistry, quantum biology and so on. Fundamental Problems in Quantum Field Theory is a handy resource for undergraduate and graduate students as well as supervisors involved in advanced courses in quantum physics.

Many beginners find physics to be a challenging subject to learn, and the difficulty extends to each branch of physics. It would be preferable for beginners to learn about different branches of physics as quickly as possible with a simplified understanding of the relevant mathematical relationships. After learning the position of each field in physics, it becomes easier to learn details of each field. In this book, special functions are not used to explain the solutions of equations. Fundamentals of Analysis In Physics summarizes the analytical methods in different fields of physics The book covers several known fields of physics and is a useful text for beginners in physics, college and university students, and working professionals who may not have a background in mathematics or physics. Key features: - Summarizes information about different fields in physics in 150 pages - Covers 7 different fields of physics (classical mechanics, electromagnetism, quantum mechanics, relativistic quantum mechanics, statistical mechanics and more) in 7 separate chapters -Contains simple explanations without the use of special functions.

Fundamentals of Nuclear Physics gives elementary understanding of nuclear and particle physics. The textbook offers an overview of the subject, providing students with a basic understanding about 1) the atomic structure and the nucleus, 2) equipment such as particle detectors, particle accelerators, and nuclear reactors, 3) radioactivity, and 4) elementary particles. Each chapter provides fundamental theoretical and experimental knowledge required for students to strengthen their concepts. Other key features of the book include: - Structured chapters designed for easy reading and stimulating interest for learners - Sophisticated figures - Thoroughly solved equations - Bibliographic references for further reading - Updated information about different types of nuclear reactors - Information about nuclear astrophysics Fundamentals of Nuclear Physics is suitable for introductory undergraduate courses in nuclear physics as well as more innovative courses geared towards nuclear engineering.

Global Neutron Calculations provides assessment guidelines for nuclear reactors in a step-by-step manner. The book introduces readers to principal physical ideas, the fundamentals of nuclear reactors including the theory of self-sustaining chain reactions and the associated physical and mathematical calculations. The required theory, the mathematical appparatus and, the applied methods are comprehensively explained in the first half of the book followed by details about the applications of the theory and methods. Readers will gain essential information about reactor control and surveillance, instrumentation and control, technology, fuel management, core design and the differences in reactor technologies. Global Neutron Calculations demystifies technical and mathematical knowledge about reactor design, operation, safety and analysis for engineers learning about one of mankind’s most controversial means of power generation.

Recent developments in gravity-superconductivity interactions have been summarized by several researchers. If gravitation has to be eventually reconciled with quantum mechanics, the macroscopic quantum character of superconductors might actually matter. This e-book attempts to answer one key question relating to gravity research: Is it possible to generate gravity-like fields by condensed-matter systems, in conditions accessible in a laboratory? General Relativity and lowest-order Quantum Gravity predict in this case very small emission rates, so these phenomena can only become relevant if some strong quantum effect occurs. This e-book is unique in its genre as it maintains a careful balance between different techniques and approaches in gravity and superconductivity research. It will be of interest for researchers in General Relativity and gravitation theories, in field theory, in experimental gravitation, in low-temperature and high-temperature superconductivity and in more applied fields such as telecommunications and beam propulsion technology.

The phenomenon of resistance to motion through a fluid is believed to be a function of fluid-wall interaction. This theory is based on the assumption that under certain conditions a real fluid does not usually slip on the wall in contact with it and displays laminar flow. This set of conditions is known as a ‘no slip boundary condition’. But if a fluid is passed alongside a wall, the drag reduction in the laminar flow region can be calculated. In Laminar Drag Reduction, the frictional drag of an internal or an external fluid flow along a certain kind of hydrophobic wall is investigated. An analytic approach towards the mechanism of drag reduction is employed using Navier-Stokes existence and smoothness equations. The experimental results presented in this book show that frictional drag of a fluid alongside this hydrophobic wall decreases in comparison with fluid flow along a conventional wall or surface. This form of laminar drag reduction represents a relatively new area of research, where the laminar flow can be controlled by microscopic surface modifications, allowing fluid flows to slip over a wall. Laminar Drag Reduction brings information about some interesting phenomena related to fluid slippage on a highly water-repellent surface. Readers, physics graduates and senior researchers alike, can benefit from the information presented in this book to tackle more challenging questions in fluid mechanics research.

This brief monograph provides reports on liquid crystal materials used for specific devices designed for industrial applications. The authors of each chapter present insights on the design and technical aspects of the manufacturing of advanced liquid crystal light modulators reflecting their experience in advanced liquid crystal materials science. Chapters in the book first introduce readers to the chemistry and basic materials science of liquid crystal light modulators with information important for practical situations such as custom manufacturing and material quality assessment (including the determination of Frank elastic constants). Subsequent chapters cover a selection of interesting projects where liquid crystal light modulators are applied, such as: a highly transparent, laser damage resistant liquid crystal phase modulators for space-borne laser rangefinders; a dynamic optical filter designed for visualization of air pollution; a high contrast, fast operating, outdoor light shutter for the eye protection of welders. Readers will gain an awareness of the peculiarities of the liquid crystalline matter, along with the complexity of the design and fabrication of active optical elements, as the information provided in this volume presents detailed practical results of the liquid crystal technology projects.

A novel X-ray diffraction (XRD) theory is intensively revealed in this book. The theory will extend present XRD view from one dimension to two and three dimensions, enabling readers to see the invisible characteristics inside materials. The two-dimension (2D) theory involves two angular variables of the Bragg angle Θ and the angle α, introduced to show the location of sample with respect to incident X-ray beam. Such variables are used to compose a set of general mathematical models, which include a general diffraction intensity equation, an azimuth-angle equation and a common scan mode, as well as the Bragg equation, for both of the surface-and transmission-reflection treatments. This book stresses upon the X-ray analyses for natural and synthetic materials. This book is dedicated to create a bridge between basic texts and specialist works and should be helpful to scholars studying XRD theory.