Quantum Transport Calculations for Nanosystems

Quantum Transport Calculations for Nanosystems

by Kenji Hirose and Nobuhiko Kobayashi

“Electron and heat transport in nanosystems is a burgeoning field, not least due to the rapid downscaling of transistor technology. Computer simulations play a crucial role for the development of the next generations of nanoelectronics. A wide range of theoretical methods and computational tools are needed in order to bridge conductor length scales from the macroscopic regime down to single atoms and molecules and to cover the plethora of transport phenomena on the way. This book provides an excellent starting point and overview for the beginner and covers the basics of the transport theory, including exercises. It also serves as a rich source of material for the advanced researcher in the field with its detailed references and descriptions of state-of-the-art computational methods. In many ways, this ambitious book bridges the wide field of quantum transport and will be a useful reference to a wide audience.”

Prof. Mads Brandbyge, Technical University of Denmark, Denmark
  • Format: Hardcover
  • ISBN: 9789814267328
  • Subject: Quantum Electronics
  • Published: April 2014
  • Pages: 523

As electric devices become smaller and smaller at nanometer size, transport simulations based on quantum mechanics become more and more important. There are currently numerous textbooks on the basic concepts of quantum transport, but not so many to present calculation methods in detail. This book provides various quantum transport simulation methods and shows applications for transport properties of nanometer-scale systems.

This book starts with a short review of quantum transport, followed by various calculation methods based on scattering approaches, non-equilibrium Green’s function (NEGF), master equation, and time-dependent wave-packet diffusion (TD-WPD). With these tools, the transport properties of various nanosystems are then explored. These include STM systems, atomic and molecular wires, carbon-nanotube field-effect transistors (CNT-FET), quantum dots, and anomalous transport through quantum point contacts.

Key Features:

  • Describes quantum transport calculations from basic concepts to detailed calculation methods
  • Shows various application examples of quantum transport calculations for both top-down and bottom-up systems
  • Includes additional topics on the time-dependent transport formalism and thermal current