Non-Equilibrium Nano-Physics: A Many-Body Approach by Jonas FranssonNon-Equilibrium Nano-Physics: A Many-Body Approach by Jonas Fransson

Non-Equilibrium Nano-Physics: A Many-Body Approach

byJonas Fransson

Paperback | July 5, 2010

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The aim of this book is to present a formulation of the non-equilibrium physics in nanoscale systems in terms of many-body states and operators and, in addition, discuss a diagrammatic approach to Green functions expressed by many-body states. The intention is not to give an account of strongly correlated systems as such. Thus, the focus of this book ensues from the typical questions that arise when addressing nanoscale systems from a practical point of view, e.g. current-voltage asymmetries, negative differential conductance, spin-dependent tunneling. The focus is on nanoscale systems constituted of complexes of subsystems interacting with one another, under non-equilibrium conditions, in which the local properties of the subsystems are preferably being described in terms of its (many-body) eigenstates.

About The Author

Author's profile: Fransson developed a diagrammatic Green function approach to treat nanoscale many-body systems under non-equilibrium conditions; [ Phys. Rev. B 66, 195319 (2003), Phys. Rev. B 72, 075314 (2005) ]. Established a theory for asymmetries and negative differential conductance generated by strong electron correlations in na...

Details & Specs

Title:Non-Equilibrium Nano-Physics: A Many-Body ApproachFormat:PaperbackDimensions:238 pages, 9.25 × 6.1 × 0.68 inPublished:July 5, 2010Publisher:Springer NetherlandsLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:9048192099

ISBN - 13:9789048192090

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Table of Contents

1 Many-body representation of physical systems.- 1.1 Many-body states.- 1.2 Two-level system.- 1.3 Many-body operators.- 1.4 Transition matrix elements.- References.- 2 Occupation number formalism.- 2.1 Perturbing the local levels.- 2.2 Occupations numbers.- 2.3 Single-level system.- 2.4 Two-level system in the Pauli spin blockade.- References.- 3 Many-body operator Green functions.- 3.1 Basic definitions.- 3.2 Equilibrium.- 3.3 Contour ordering.- 3.4 Single-level system.- References.- 4 Non-equilibrium formalism.- 4.1 Occupation number approach.- 4.2 Two-level system: Pauli spin-blockade.- 4.3 Green function approach.- 4.4 Non-equilibrium Green functions.- 4.5 Single-level quantum dot.- References.- 5 Diagram technique.- 5.1 Decoupling procedure.- 5.2 Expansion using functional derivatives.- 5.3 Single-level quantum dot.- 5.4 Current-voltage asymmetry.- References.- 6 Collection of physical examples.- 6.1 Spin-filtering.- 6.2 Current-voltage asymmetry in double quantum dots.- 6.3 Detection of exchange interaction through Fano-like interference effects.- 6.4 Non-equilibrium triplet blockade in T-shaped double quantum dot.- 6.5 Formation of pure triplet in double quantum dot.- References.- 7 Spin system.- 7.1 Equation for local spin >.- 7.2 Dynamics of local spin: semi-classical approach.- 7.3 Signatures of the local spin in the transport.- References.

Editorial Reviews

From the reviews:"This book aims at an introductory presentation of some many-body aspects of nano-systems under non-equilibrium conditions. . Useful references are . offered at the end of each chapter, and the whole formalism is clearly illustrated through applications to simple single- and two-level systems and single-level quantum dots. . Overall, this book may be regarded as a useful and stimulating introduction to some up-to-date issues in mesoscopic physics." (Giorgio Cattapan, Mathematical Reviews, Issue 2011 f)