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This book presents a comprehensive course of quantum mechanics for undergraduate and graduate students. After a brief outline of the innovative ideas that lead up to the quantum theory, the book reviews properties of the Schrödinger equation, the quantization phenomena and the physical meaning of wave functions. The book discusses, in a direct and intelligible style, topics of the standard quantum formalism like the dynamical operators and their expected values, the Heisenberg and matrix representation, the approximate methods, the Dirac notation, harmonic oscillator, angular momentum and hydrogen atom, the spin-field and spin-orbit interactions, identical particles and Bose-Einstein condensation etc. Special emphasis is devoted to study the tunneling phenomena, transmission coefficients, phase coherence, energy levels splitting and related phenomena, of interest for quantum devices and heterostructures. The discussion of these problems and the WKB approximation is done using the transfer matrix method, introduced at a tutorial level. This book is a textbook for upper undergraduate physics and electronic engineering students.
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This primer is aimed at elevating graduate students of condensed matter theory to a level where they can engage in independent research. Topics covered include second quantisation, path and functional field integration, mean-field theory and collective phenomena.
Do you want to learn more about quantum physics, but you don't know where to begin? Are you perplexed if it's possible to have the same object in two places at once? Are you trying to find answers if time travel is feasible today? If your answer to these questions is yes, then keep reading! Whether you believe it or not, the Quantum world is real! Quantum Physics discovers the behavior of energy and matter at the nuclear, atomic, molecular, and even smaller levels. This book, Quantum Physics for Beginners - The Easy Guide to Understand how Everything Works through the Behavior of Matter, the Law of Attraction and the Theory of Relativity, will make such a complicated subject simple to comprehend. It avoids the complicated math and jumps right into all the implications, thought experiments, paradoxes, and concepts which make quantum physics so intriguing to people out there. Quantum physics might sound like the type of topic you do not like to touch for a simple read before you go to sleep. No one would blame you for that. Honestly, quantum physics is loaded with deals and paradoxes in the concept of paradox itself as its core engine. This book is intended to help you with that. Knowing the fundamentals of quantum physics is simple with this guide. After reading, you can start asking big questions through modern physics and find solutions to such problems too. Here's a quick peek of what you will learn in this book: What Is Quantum Physics, And Why you Should Learn It Introduction To Quantum Physics Main Elements Einstein and The Theory Of Relativity The String Theory, the M-Theory and the Theory of Everything The Great Minds: Einstein, Heisenberg, Bohr, Stephen Hawking, and many others The Relationship Between Waves And Particles Practical Applications Of Quantum Theory How Quantum Physics will help us in the Third Millennium Philosophical Implications How the Law of Attraction influences our daily life How Blackholes work ...And much more! Get this book today and explore the universe. Click BUY NOW to get started!
The physics of disordered systems has enjoyed a resurgence of interest in the last decade. New concepts such as weak localization, interaction effects and Coulomb gap, have been developed for the transport properties of metals and insulators. With the fabrication of smaller and smaller samples and the routine availability of low temperatures, new physics has emerged from the studies of small devices. The new field goes under the name "mesoscopic physics" and has rapidly developed, both experimentally and theoretically. This book is designed to review the current status of the field.Most of the chapters in the book are devoted to the development of new ideas in the field. They include reviews of experimental observations of conductance fluctuations and the Aharonov-Bohm oscillations in disordered metals, theoretical and experimental work on low frequency noise in small disordered systems, transmittancy fluctuations through random barriers, and theoretical work on the distribution of fluctuation quantities such as conductance. Two chapters are not connected directly to the mesoscopic fluctuations but deal with small systems. They cover the effects of Coulomb interaction in the tunneling through the small junctions, and experimental results on ballistic transport through a perfect conductor.
Density functional theory (DFT) is by now a well-established method for tackling the quantum mechanics of many-body systems. Originally applied to compute properties of atoms and simple molecules, DFT has quickly become a work horse for more complex applications in the chemical and materials sciences. The present set of lectures, spanning the whole range from basic principles to relativistic and time-dependent extensions of the theory, is the ideal introduction for graduate students or nonspecialist researchers wishing to familiarize themselves with both the basic and most advanced techniques in this field.