Eigenstate Calculations for Multidimensional Nanostructures: Quantum Wells, Wires and Dots

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Nanotechnology is the latest buzzword in scientific circles. Fabrication of new nanoscale devices calls for extremely accurate simulation and analysis. Traditional mesh based methods have been used in many CAD tools, however dealing with atomic/molecular dimensions poses new and complex problems which reveal the shortcomings of the conventional methods, mostly the mesh generation step. Recently a new category of numerical methods, called meshless methods has shown great promise in overcoming these problems by eliminating the mesh generation step.This book is intended primarily for research scientists and professionals with an interest in application of numerical methods in engineering and science. The text starts by covering the fundamentals of quantum mechanics and compares two broad categories of numerical methods used to solve partial differential equations. The book continues by describing how to use a particular meshless method to solve the multidimensional Schrodinger equation. The Schrodinger equation is solved for one-particle nanostructures with an arbitrary potential profile.

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Nanoscale Devices: Fabrication, Functionalization, and Accessibility from the Macroscopic World

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The evolution of the microelectronics is controlled by the idea of scaling. However, the scaling of the device size below 10 nm is expected to be impossible because of physical, technological and economic reasons. Fundamental considerations (based on Heisenberg’s principle, Schrödinger equation, decoherence of quantum states, and Landauer limit) suggest that a length scale of a few nanometers is possible. On this length scale, reconfigurable molecules (via redox or internal excitation processes) seem to be suitable for that. Moreover, crossbar with cross-point density in the range 10¹⁰–10¹¹ cm^-² can already be prepared with existing methods, and such methods permit the link of nanoscopic cross-points to lithographically accessible contacts. The structures for molecular electronics deal with molecules. Although this subject is highly interdisciplinary (covering quantum and statistical mechanics, supramolecular chemistry, chemistry of surfaces, and silicon technology and devices), the book is intended to be self-contained providing in appendices the necessary side knowledge.

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Bio-Inspired and Nanoscale Integrated Computing

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Brings the latest advances in nanotechnology and biology to computing

This pioneering book demonstrates how nanotechnology can create even faster, denser computing architectures and algorithms. Furthermore, it draws from the latest advances in biology with a focus on bio-inspired computing at the nanoscale, bringing to light several new and innovative applications such as nanoscale implantable biomedical devices and neural networks.

Bio-Inspired and Nanoscale Integrated Computing features an expert team of interdisciplinary authors who offer readers the benefit of their own breakthroughs in integrated computing as well as a thorough investigation and analyses of the literature. Carefully edited, the book begins with an introductory chapter providing a general overview of the field. It ends with a chapter setting forth the common themes that tie the chapters together as well as a forecast of emerging avenues of research.

Among the important topics addressed in the book are modeling of nano devices, quantum computing, quantum dot cellular automata, dielectrophoretic reconfigurable nano architectures, multilevel and three-dimensional nanomagnetic recording, spin-wave architectures and algorithms, fault-tolerant nanocomputing, molecular computing, self-assembly of supramolecular nanostructures, DNA nanotechnology and computing, nanoscale DNA sequence matching, medical nanorobotics, heterogeneous nanostructures for biomedical diagnostics, biomimetic cortical nanocircuits, bio-applications of carbon nanotubes, and nanoscale image processing.

Readers in electrical engineering, computer science, and computational biology will gain new insights into how bio-inspired and nanoscale devices can be used to design the next generation of enhanced integrated circuits.

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