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Scattering Matrix Approach to Non-stationary Quantum Transport
Michael V. Moskalets
出版World Scientific, 2012
主題Science / Physics / Condensed MatterScience / Physics / Mathematical & ComputationalTechnology & Engineering / Nanotechnology & MEMS
ISBN18481683499781848168343
URLhttp://books.google.com.hk/books?id=K_lpDQAAQBAJ&hl=&source=gbs_api
EBookSAMPLE
註釋The aim of this book is to introduce the basic elements of the scattering matrix approach to transport phenomena in dynamical quantum systems of non-interacting electrons. This approach permits a physically clear and transparent description of transport processes in dynamical mesoscopic systems, promising basic elements of solid-state devices for quantum information processing. One of the key effects, the quantum pump effect, is considered in detail. In addition, the theory for the recently implemented new dynamical source ? injecting electrons with time delay much larger than an electron coherence time ? is offered. This theory provides a simple description of quantum circuits with such a single-particle source and shows in an unambiguous way that the tunability inherent to the dynamical systems (in contrast to the stationary ones) leads to a number of unexpected but fundamental effects.