Real Time Quantum Dynamics Of Electron Phonon Systems
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Real Time Quantum Dynamics Of Electron Phonon Systems
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Author : Valerio Rizzi
language : en
Publisher: Springer
Release Date : 2018-08-01
Real Time Quantum Dynamics Of Electron Phonon Systems written by Valerio Rizzi and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-01 with Science categories.
This book develops a methodology for the real-time coupled quantum dynamics of electrons and phonons in nanostructures, both isolated structures and those open to an environment. It then applies this technique to both fundamental and practical problems that are relevant, in particular, to nanodevice physics, laser–matter interaction, and radiation damage in living tissue. The interaction between electrons and atomic vibrations (phonons) is an example of how a process at the heart of quantum dynamics can impact our everyday lives. This is e.g. how electrical current generates heat, making your toaster work. It is also a key process behind many crucial problems down to the atomic and molecular scale, such as the functionality of nanoscale electronic devices, the relaxation of photo-excited systems, the energetics of systems under irradiation, and thermoelectric effects. Electron–phonon interactions represent a difficult many-body problem. Fairly standard techniques are available for tackling cases in which one of the two subsystems can be treated as a steady-state bath for the other, but determining the simultaneous coupled dynamics of the two poses a real challenge. This book tackles precisely this problem.
Real Time Quantum Dynamics Of Electron Phonon Systems
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Author : Valerio Rizzi
language : en
Publisher:
Release Date : 2018
Real Time Quantum Dynamics Of Electron Phonon Systems written by Valerio Rizzi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Electron-phonon interactions categories.
This book develops a methodology for the real-time coupled quantum dynamics of electrons and phonons in nanostructures, both isolated structures and those open to an environment. It then applies this technique to both fundamental and practical problems that are relevant, in particular, to nanodevice physics, laser-matter interaction, and radiation damage in living tissue. The interaction between electrons and atomic vibrations (phonons) is an example of how a process at the heart of quantum dynamics can impact our everyday lives. This is e.g. how electrical current generates heat, making your toaster work. It is also a key process behind many crucial problems down to the atomic and molecular scale, such as the functionality of nanoscale electronic devices, the relaxation of photo-excited systems, the energetics of systems under irradiation, and thermoelectric effects. Electron-phonon interactions represent a difficult many-body problem. Fairly standard techniques are available for tackling cases in which one of the two subsystems can be treated as a steady-state bath for the other, but determining the simultaneous coupled dynamics of the two poses a real challenge. This book tackles precisely this problem.
Electron Phonon Thermalization In A Scalable Method For Real Time Quantum Dynamics
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Author :
language : en
Publisher:
Release Date : 2016
Electron Phonon Thermalization In A Scalable Method For Real Time Quantum Dynamics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Here, we present a quantum simulation method that follows the dynamics of out-of-equilibrium many-body systems of electrons and oscillators in real time. Its cost is linear in the number of oscillators and it can probe time scales from attoseconds to hundreds of picoseconds. Contrary to Ehrenfest dynamics, it can thermalize starting from a variety of initial conditions, including electronic population inversion. While an electronic temperature can be defined in terms of a nonequilibrium entropy, a Fermi-Dirac distribution in general emerges only after thermalization. These results can be used to construct a kinetic model of electron-phonon equilibration based on the explicit quantum dynamics.
Quench Dynamics In Interacting And Superconducting Nanojunctions
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Author : Rubén Seoane Souto
language : en
Publisher: Springer Nature
Release Date : 2020-02-05
Quench Dynamics In Interacting And Superconducting Nanojunctions written by Rubén Seoane Souto and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-05 with Technology & Engineering categories.
Effects of many-body interactions and superconducting correlations have become central questions in the quantum transport community. While most previous works investigating current fluctuations in nanodevices have been restricted to the stationary regime, Seoane's thesis extends these studies to the time domain. It provides relevant information about the time onset of electronic correlations mediated by interactions and superconductivity. This knowledge is essential for the development of fast electronic devices, as well as novel applications requiring fast manipulations, such as quantum information processing. In addition, the thesis establishes contact with issues of broad current interest such as non-equilibrium quantum phase transitions.
Quantum Foundations And Open Quantum Systems Lecture Notes Of The Advanced School
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Author : Theo M Nieuwenhuizen
language : en
Publisher: World Scientific
Release Date : 2014-10-03
Quantum Foundations And Open Quantum Systems Lecture Notes Of The Advanced School written by Theo M Nieuwenhuizen and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-03 with Science categories.
The Advanced School on Quantum Foundations and Open Quantum Systems was an exceptional combination of lectures. These comprise lectures in standard physics and investigations on the foundations of quantum physics.On the one hand it included lectures on quantum information, quantum open systems, quantum transport and quantum solid state. On the other hand it included lectures on quantum measurement, models for elementary particles, sub-quantum structures and aspects on the philosophy and principles of quantum physics.The special program of this school offered a broad outlook on the current and near future fundamental research in theoretical physics.The lectures are at the level of PhD students.
Time Dependent Density Functional Theory
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Author : Chaoyuan Zhu
language : en
Publisher: CRC Press
Release Date : 2022-12-29
Time Dependent Density Functional Theory written by Chaoyuan Zhu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-12-29 with Science categories.
In recent decades, time-dependent density functional theory has been developed for computing excited-state properties of large-scale systems to high accuracy in biomolecules and nanomaterials, especially for ab initio nonadiabatic molecular dynamic simulations. It is therefore regarded as a most unique efficient method to do accurate simulation for large complex systems. This book compiles and details cutting-edge research in quantum chemistry and chemical physics from interdisciplinary groups from Japan, China, South Korea, the United States, Hong Kong, and Taiwan. These groups are developing excited-state dynamics methods involving conical intersections and intersystem crossings for large complex systems. Edited by Chaoyuan Zhu, a prominent chemical physics researcher, this book will appeal to anyone involved in molecular dynamics and spectroscopy, photochemistry, biochemistry, and materials chemistry research.
Solitons And Polarons In Conducting Polymers
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Author : Lu Yu
language : en
Publisher: World Scientific
Release Date : 1988-08-01
Solitons And Polarons In Conducting Polymers written by Lu Yu and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988-08-01 with Science categories.
Polyacetylence, (CH)x is the simplest conjugated polymer. Prestine polyacetylence is a good insulator, whereas its highly doped version exhibits metal-like electrical conductivity. This book gives a detailed introduction to this rapidly-developing field is given along with a collection of original papers. The main purpose is to help chemists and physicists grasp the main ideas and most important facts; an expert may also find it useful as a reference volume.
Selected Papers Of J Robert Schrieffer
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Author : John Robert Schrieffer
language : en
Publisher: World Scientific
Release Date : 2002
Selected Papers Of J Robert Schrieffer written by John Robert Schrieffer and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Science categories.
Presents papers by theoretical physicist J. Robert Schrieffer on topics in superconductivity and condensed matter physics.
Time Resolved Measurements Of Collective Effects In Quantum Conductors
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Author : Everton Arrighi
language : en
Publisher:
Release Date : 2020
Time Resolved Measurements Of Collective Effects In Quantum Conductors written by Everton Arrighi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Quantum dynamics is very sensitive to dimensionality. While two-dimensional electronic systems form Fermi liquids, one-dimensional systems--Tomonaga-Luttinger liquids--are described by purely bosonic excitations, even though they are initially made of fermions. With the advent of coherent single-electron sources, the quantum dynamics of such a liquid is now accessible at the single-electron level.In this PhD work, we study the most general case where the system can be tuned continuously from a clean one-channel Tomonaga- Luttinger liquid to a multi-channel Fermi liquid in a non-chiral system. We use time-resolved measurement techniques to determine the time of flight of a single-electron voltage pulse and extract the collective charge excitation velocity. Analysing the propagation velocity allows to reveal the collective effects that govern the physics in our quasi one-dimensional system. Our detailed modelling of the electrostatics of the sample allows us to construct and understand the excitations of the system in a parameter-free theory. We show that our self-consistent calculations capture well the results of the measurements, validating the construction of the bosonic collective modes from the fermionic degrees of freedom.The presented time control of single-electron pulses at the picosecond level will also be important for the implementation of wave-guide architectures for flying qubits using single electrons. Integrating a leviton source into a wave-guide interferometer would allow to realise single-electron flying qubit architectures similar to those employed in linear quantum optics. Furthermore, our studies pave the way for studying real-time dynamics of a quantum nanoelectronic device such as the measurement of the time spreading or the charge fractionalisation dynamics of the electron wave packet during propagation.
High Performance Computing On Vector Systems 2005
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Author : Thomas Bönisch
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-05-31
High Performance Computing On Vector Systems 2005 written by Thomas Bönisch and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-05-31 with Computers categories.
The book presents the state of the art in high performance computing and simulation on modern supercomputer architectures. It covers trends in hardware and software development in general and specifically the future of vector-based systems and heterogeneous architectures. The application contributions include computational fluid dynamics, physics, chemistry, astrophysics, and biology. Innovative application fields like multiphysics simulations and material science are presented.