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Non-Equilibrium Nano-Physics: A Many-Body Approach: Lecture Notes in Physics, cartea 809

Autor Jonas Fransson
en Limba Engleză Paperback – 5 iul 2010
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.
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Specificații

ISBN-13: 9789048192090
ISBN-10: 9048192099
Pagini: 240
Ilustrații: XIV, 224 p.
Dimensiuni: 155 x 235 x 15 mm
Greutate: 0.34 kg
Ediția:2010
Editura: SPRINGER NETHERLANDS
Colecția Springer
Seria Lecture Notes in Physics

Locul publicării:Dordrecht, Netherlands

Public țintă

Research

Cuprins

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.

Recenzii

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)

Notă biografică

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 nanoscale systems [ Phys. Rev. B 70, 085301 (2004) , Phys. Rev. B 69, 201304 (2004) , J. Phys.: Condens. Matter 16, L85 (2004) ]. Provided a successful theoretical description and explanation for the so-called Pauli exclusion principle spin blockade in double quantum dot systems [Phys. Rev. B73, 205333 (2006)]. Described combined nanomechanical-superconducting device that allows Cooper pair tunneling to interfere with the mechanical motion of a middle superconducting island [Phys. Rev. Lett. 101, 067202 (2008)]. In total he has published 32 peer reviewed papers which are cited ~200 times - the index is currently 8. Sources: ISI Web of Knowledge, APS, and IOP.

Textul de pe ultima copertă

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. 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.

Caracteristici

Comprehensive theoretical treatment of non-equilibrium physics in nanoscale systems Offers a thorough introduction to many-body operations and Green functions Presents advanced theoretical methods of many body physics applied to important practical phenomena, such as electron transport in quantum dots Provides access to an in-depth description of interacting nanosystems with requiring advanced knowledge of quantum mechanics