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"The present book provides to the main ideas and techniques of the rapid progressing field of quantum information and quantum computation using isotope, mixed materials. It starts with an introduction to the isotope physics and then describes of the isotope, based quantum information and quantum computation. The ability to manipulate and control electron and/or nucleus spin in semiconductor devices provides a new route to expand the capabilities of inorganic semiconductor-based electronics and to design innovative devices with potential application in quantum computing. One of the major challenges towards these objectives is to develop semiconductor-based systems and architectures in which the spatial distribution of spins and their properties can be controlled. For instance, to eliminate electron spin decoherence resulting from hyperfine interaction due to nuclear spin background, isotopically controlled devices are needed (i.e., nuclear spin-depleted). In other emerging concepts, the control of the spatial distribution of isotopes with nuclear spins is a prerequisite to implement the quantum bits (or qbits). Therefore, stable semiconductor isotopes are important elements in the development of solid-state quantum information. There are not only different algorithms of quantum computation discussed but also the different models of quantum computers are presented. With numerous illustrations this small book is of great interest for undergraduate students taking courses in mesoscopic physics or nanoelectronics as well as quantum information, and academic and industrial researches working in this field."

"In recent times, research all over the world has shifted from a state of diversity to Quantum Information Systems (QIS), based on Nanotechnology. QIS is thesynergy of Quantum Mechanics and Information Systems, the two giants in science and technology from the last century.It explain the present state of physical realization of quantum computation devices and their future scope. The book concludes with a note on developing a Theory of Many Things for high-end complexity systems. This book would be a handy reference for researchers, scientists and professionals working in the field. It would also be useful to students of quantum computing and information systems."

"In recent times, research all over the world has shifted from a state of diversity to Quantum Information Systems (QIS), based on Nanotechnology. QIS is thesynergy of Quantum Mechanics and Information Systems, the two giants in science and technology from the last century.It explain the present state of physical realization of quantum computation devices and their future scope. The book concludes with a note on developing a Theory of Many Things for high-end complexity systems. This book would be a handy reference for researchers, scientists and professionals working in the field. It would also be useful to students of quantum computing and information systems."