Nonequilibrium Green's Functions Approach to Inhomogeneous Systems

Nonequilibrium Green's Functions Approach to Inhomogeneous Systems

Author: Karsten Balzer

Publisher: Springer

Published: 2012-12-14

Total Pages: 135

ISBN-13: 3642350828

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This book offers a self-contained introduction to non-equilibrium quantum particle dynamics for inhomogeneous systems, including a survey of recent breakthroughs pioneered by the authors and others. The approach is based on real-time Green’s functions.


Proceedings of the Conference, Progress in Nonequilibrium Green's Functions, Dresden, Germany, 19-23 August 2002

Proceedings of the Conference, Progress in Nonequilibrium Green's Functions, Dresden, Germany, 19-23 August 2002

Author: Michael Bonitz

Publisher: World Scientific

Published: 2003

Total Pages: 556

ISBN-13: 9789812705129

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Equilibrium and nonequilibrium properties of correlated many-body systems are of growing interest in many areas of physics, including condensed matter, dense plasmas, nuclear matter and particles. The most powerful and general method which is equally applied to all these areas is given by quantum field theory. This book provides an overview of the basic ideas and concepts of the method of nonequilibrium Green''s functions, written by the leading experts and presented in a way accessible to non-specialists and graduate students. It is complemented by invited review papers on modern applications of the method to a variety of topics, such as optics and quantum transport in semiconductors; superconductivity; strong field effects, QCD, and state-of-the-art computational concepts OCo from Green''s functions to quantum Monte Carlo and time-dependent density functional theory.The proceedings have been selected for coverage in: OCo Index to Scientific & Technical Proceedings (ISTP CDROM version / ISI Proceedings)"


Out-of-Equilibrium Physics of Correlated Electron Systems

Out-of-Equilibrium Physics of Correlated Electron Systems

Author: Roberta Citro

Publisher: Springer

Published: 2018-07-26

Total Pages: 199

ISBN-13: 331994956X

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This book is a wide-ranging survey of the physics of out-of-equilibrium systems of correlated electrons, ranging from the theoretical, to the numerical, computational and experimental aspects. It starts from basic approaches to non-equilibrium physics, such as the mean-field approach, then proceeds to more advanced methods, such as dynamical mean-field theory and master equation approaches. Lastly, it offers a comprehensive overview of the latest advances in experimental investigations of complex quantum materials by means of ultrafast spectroscopy.


Complex Plasmas

Complex Plasmas

Author: Michael Bonitz

Publisher: Springer Science & Business Media

Published: 2014-04-09

Total Pages: 495

ISBN-13: 3319054376

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This book provides the reader with an introduction to the physics of complex plasmas, a discussion of the specific scientific and technical challenges they present and an overview of their potential technological applications. Complex plasmas differ from conventional high-temperature plasmas in several ways: they may contain additional species, including nano meter- to micrometer-sized particles, negative ions, molecules and radicals and they may exhibit strong correlations or quantum effects. This book introduces the classical and quantum mechanical approaches used to describe and simulate complex plasmas. It also covers some key experimental techniques used in the analysis of these plasmas, including calorimetric probe methods, IR absorption techniques and X-ray absorption spectroscopy. The final part of the book reviews the emerging applications of microcavity and microchannel plasmas, the synthesis and assembly of nanomaterials through plasma electrochemistry, the large-scale generation of ozone using microplasmas and novel applications of atmospheric-pressure non-thermal plasmas in dentistry. Going beyond the scope of traditional plasma texts, the presentation is very well suited for senior undergraduate, graduate students and postdoctoral researchers specializing in plasma physics.


Emergence of Temperature in Examples and Related Nuisances in Field Theory

Emergence of Temperature in Examples and Related Nuisances in Field Theory

Author: Tamás Sándor Biró

Publisher: Springer

Published: 2019-02-07

Total Pages: 118

ISBN-13: 3030116891

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Field theory, relying on the concept of continuous space and time while confronted with the quantum physical nature of observable quantities, still has some fundamental challenges to face. One such challenge is to understand the emergence of complexity in the behavior of interacting elementary fields, including among other things nontrivial phase structures of elementary matter at high energy density or an atypical emergence of statistical properties, e.g., when an apparent temperature is proportional to a constant acceleration in a homogeneous gravitational field. Most modern textbooks on thermal field theory are mainly concerned with how the field theory formalism should be used if a finite temperature is given. In contrast, this short primer explores how the phenomenon of temperature emerges physically for elementary fields - inquiring about the underlying kinetic field theory and the way energy fluctuations and other noise should be handled - and it investigates whether and how this harmonizes with traditional field theory concepts like spectral evolution, the Keldysh formalism, and phase transitions.


Hybrid Atomic-Scale Interface Design for Materials Functionality

Hybrid Atomic-Scale Interface Design for Materials Functionality

Author: Ajit K. Roy

Publisher: Elsevier

Published: 2021-03-10

Total Pages: 281

ISBN-13: 012819118X

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Hybrid Atomic-Scale Interface Design for Materials Functionality covers a broad range of atomistic, meso and macro scale computational methodologies, including multiphase (hybrid) materials constructs for tailoring structural, thermal and electrical properties. As future materials are expected to perform with increasing efficiency in complex and dynamic environments hybrid materials design, in contrast to monolithic concepts, they are a cost-effective alternative. Taking materials hybridization at smaller scale, even at atomic scale, offers exceedingly high-payoff opportunities for optimizing materials functionality at reduced material consumption and even reduced qualification costs (eliminates many costly component and system level qualification tests). - Presents computational methodologies for materials hybridization and interface design at the atomic scale - Covers materials interface design (atomic configuration), a key component to optimize and achieve performance metrics - Helps readers with material selectivity and in the materials design phase of any product design


Fundamentals and Frontiers of the Josephson Effect

Fundamentals and Frontiers of the Josephson Effect

Author: Francesco Tafuri

Publisher: Springer Nature

Published: 2019-09-17

Total Pages: 884

ISBN-13: 3030207269

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This book provides a comprehensive and up-to-date description of the Josephson effect, a topic of never-ending interest in both fundamental and applied physics. In this volume, world-renowned experts present the unique aspects of the physics of the Josephson effect, resulting from the use of new materials, of hybrid architectures and from the possibility of realizing nanoscale junctions. These new experimental capabilities lead to systems where novel coherent phenomena and transport processes emerge. All this is of great relevance and impact, especially when combined with the didactic approach of the book. The reader will benefit from a general and modern view of coherent phenomena in weakly-coupled superconductors on a macroscopic scale. Topics that have been only recently discussed in specialized papers and in short reviews are described here for the first time and organized in a general framework. An important section of the book is also devoted to applications, with focus on long-term, future applications. In addition to a significant number of illustrations, the book includes numerous tables for comparative studies on technical aspects.


Picosecond Electronics and Optoelectronics

Picosecond Electronics and Optoelectronics

Author: Gerard A. Mourou

Publisher: Springer Science & Business Media

Published: 2013-03-07

Total Pages: 267

ISBN-13: 3642707807

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Over the past decade, we have witnessed a number of spectacular advances in the fabrication of crystalline semiconductor devices due mainly to the pro gress of the different techni ques of heteroepitaxy. The di scovery of two dimensional behavior of electrons led to the development of a new breed of ultrafast electronic and optical devices, such as modulation doped FETs, permeable base transistors, and double heterojunction transistors. Comparable progress has been made in the domain of cryoelectronics, ultrashort pulse generation, and ultrafast diagnostics. Dye lasers can generate 8 fs signals after compression, diode lasers can be modulated at speeds close to 20 GHz and electrical signals are characterized with subpicosecond accuracy via the electro-optic effect. Presently, we are experiencing an important interplay between the field of optics and electronics; the purpose of this meeting was to foster and enhance the interaction between the two disciplines. It was logical to start the conference by presenting to the two different audiences, i. e. , electronics and optics, the state-of-the-art in the two res pective fields and to highlight the importance of optical techniques in the analysis of physical processes and device performances. One of the leading techniques in this area is the electro-optic sampling technique. This optical technique has been used to characterize transmission lines and GaAs devices. Carrier transport in semiconductors is of fundamental importance and some of its important aspects are stressed in these proceedings.


Quantum Field Theory of Non-equilibrium States

Quantum Field Theory of Non-equilibrium States

Author: Jørgen Rammer

Publisher: Cambridge University Press

Published: 2011-03-03

Total Pages: 0

ISBN-13: 9780521188005

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Quantum field theory is the application of quantum mechanics to systems with infinitely many degrees of freedom. This 2007 textbook presents quantum field theoretical applications to systems out of equilibrium. It introduces the real-time approach to non-equilibrium statistical mechanics and the quantum field theory of non-equilibrium states in general. It offers two ways of learning how to study non-equilibrium states of many-body systems: the mathematical canonical way and an easy intuitive way using Feynman diagrams. The latter provides an easy introduction to the powerful functional methods of field theory, and the use of Feynman diagrams to study classical stochastic dynamics is considered in detail. The developed real-time technique is applied to study numerous phenomena in many-body systems. Complete with numerous exercises to aid self-study, this textbook is suitable for graduate students in statistical mechanics and condensed matter physics.