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Books > Science & Mathematics > Physics
The chapters in this monograph are contributions from the Advances
in Quantum Monte Carlo symposium held at Pacifichem 2010,
International Chemical Congress of Pacific Basin Societies. The
symposium was dedicated to celebrate the career of James B.
Anderson, a notable researcher in the field. Quantum Monte Carlo
provides an ab initio solution to the Schroedinger equation by
performing a random walk through configuration space in imaginary
time. Benchmark calculations suggest that its most commonly-used
variant, "fixed-node" diffusion Monte Carlo, estimates energies
with an accuracy comparable to that of high-level coupled-cluster
calculations. These two methods, each having advantages and
disadvantages, are complementary "gold-standards" of quantum
chemistry. There are challenges facing researchers in the field,
several of which are addressed in the chapters in this monograph.
These include improving the accuracy and precision of quantum Monte
Carlo calculations; understanding the exchange nodes and utilizing
the simulated electron distribution; extending the method to large
and/or experimentally-challenging systems; and developing hybrid
molecular mechanics/dynamics and Monte Carlo algorithms.
Low-Energy Nuclear Reactions and New Energy is a summary of
selected experimental and theoretical research performed over the
last 19 years that gives profound and unambiguous evidence for low
energy nuclear reaction (LENR), historically known as cold fusion.
In 1989, the subject was announced with great fanfare, to the
chagrin of many people in the science community. However, the
significant claim of its discoverers, Martin Fleischmann and
Stanley Pons, excess heat without harmful neutron emissions or
strong gamma radiation, involving electrochemical cells using heavy
water and palladium, has held strong.
In recent years, LENR, within the field of condensed matter nuclear
science, has begun to attract widespread attention and is regarded
as a potential alternative and renewable energy source to confront
climate change and energy scarcity. The aim of the research is to
collect experimental findings for LENR in order to present
reasonable explanations and a conclusive theoretical and practical
working model.
The goal of the field is directed toward the fabrication of LENR
devices with unique commercial potential demonstrating an
alternative energy source that does not produce greenhouse gases,
long-lived radiation or strong prompt radiation. The idea of LENR
has led to endless discussions about the kinetic impossibility of
intense nuclear reactions with high coulomb barrier potential.
However, recent theoretical work may soon shed light on this
mystery.
Understanding this process is one of the most challenging and
perhaps important issues in the scientific world. This book
includes previously unpublished studies, new and controversial
theories to approach LENR with access to new sources and
experimental results. The book offers insight into this
controversial subject and will help readers re-evaluate their
perspective on LENR as a possible alternative energy source.
This book is on inertial confinement fusion, an alternative way to
produce electrical power from hydrogen fuel by using powerful
lasers or particle beams. Two huge laser facilities are presently
under construction to show that this method works. It involves the
compression of tiny amounts (micrograms) of fuel to thousand times
solid density and pressures otherwise existing only in the centre
of stars. Thanks to advances in laser technology, it is now
possible to produce such extreme states of matter in the
laboratory. Recent developments have boosted laser intensities
again with new possibilities for laser particle accelerators, laser
nuclear physics, and fast ignition of fusion targets. This is a
reference book for those working on beam plasma physics, be it in
the context of fundamental research or applications to fusion
energy or novel ultra-bright laser sources. The book combines quite
different areas of physics: beam target interaction, dense plasmas,
hydrodynamic implosion and instabilities, radiative energy transfer
as well as fusion reactions. Particular attention is given to
simple and useful modeling, including dimensional analysis and
similarity solutions. Both authors have worked in this field for
more than 20 years. They want to address in particular those
teaching this topic to students and all those interested in
understanding the technical basis.
Gain insight into the mechanical properties and performance of
engineering ceramics and composites. This collection of articles
illustrates the Mechanical Behavior and Performance of Ceramics
& Composites symposium, which included over 100 presentations
representing 10 countries. The symposium addressed the cutting-edge
topics on mechanical properties and reliability of ceramics and
composites and their correlations to processing, microstructure,
and environmental effects.
A NEW YORK TIMES BESTSELLER Do we have free will? Is the universe
compatible with God? Do we live in a computer simulation? Does the
universe think? Physicists are great at complicated research, but
they are less good at telling us why it matters. In this
entertaining and groundbreaking book, theoretical physicist Sabine
Hossenfelder breaks down why we should care. Drawing on the latest
research in quantum mechanics, black holes, string theory and
particle physics, Existential Physics explains what modern physics
can tell us about the big questions. Filled with counterintuitive
insights and including interviews with other leading scientists,
this clear and yet profound book will reshape your understanding of
science and the limits of what we can know.
The emphasis of Planetary Atmospheres is on comparative aspects of
planetary atmospheres, generally meaning comparison with the Earth,
including atmospheric composition, thermal structure, cloud
properties, dynamics, weather and climate, and aeronomy. The goal
is to look for common processes at work under different boundary
conditions in order to reach a fundamental understanding of the
physics of atmospheres. As part of a general Physics course, the
material is chosen to emphasise certain aspects that will be of
broad topical interest:
- evolutionary processes, setting the Earth in its context as a
planet and a member of the Solar System
- the properties of atmospheres that affect the climate near the
surface of each planet
- measurement techniques and models, where the same experimental
and theoretical physics is applied under different conditions to
investigate and explain atmospheric behaviour.
These might be thought of as the astronomical, environmental, and
technical sides of the discipline respectively.
The book covers the basic physics of planetary atmospheres in a
single text for students or anyone interested in this area of
science. The approach is the same as in the author's previous book
Elementary Climate Physics: an overview, followed by more detailed
discussion of key topics arranged by physical phenomenon and not
planet by planet as usually found in this field. There is an
emphasis on acquiring and interpreting measurements, and the basic
physics of instruments and models, with key definitions and some
historical background in footnotes and in the glossary at the end
of the book.
This textbook describes the physics of semiconductor nanostructures
with emphasis on their electronic transport properties. At its
heart are five fundamental transport phenomena: quantized
conductance, tunnelling transport, the Aharonov-Bohm effect, the
quantum Hall effect, and the Coulomb blockade effect.
The book starts out with the basics of solid state and
semiconductor physics, such as crystal structure, band structure,
and effective mass approximation, including spin-orbit interaction
effects important for research in semiconductor spintronics. It
contains material aspects such as band engineering, doping, gating,
and a selection of nanostructure fabrication techniques. The book
discusses the Drude-Boltzmann-Sommerfeld transport theory as well
as conductance quantization and the Landauer-Buttiker theory. These
concepts are extended to mesoscopic interference phenomena and
decoherence, magnetotransport, and interaction effects in
quantum-confined systems, guiding the reader from fundamental
effects to specialized state-of-the-art experiments.
The book will provide a thorough introduction into the topic for
graduate and PhD students, and will be a useful reference for
lecturers and researchers working in the field.
Quantum mechanical problems capable of exact solution are
traditionally solved in a few instances only (such as the harmonic
oscillator and angular momentum) by operator methods, but mainly by
means of Schrodinger's wave mechanics. The present volume shows
that a large range of one- and three- dimensional problems,
including certain relativistic ones, are solvable by algebraic,
representation-independent methods using commutation relations,
shift operators, the viral, hyperviral, and Hellman-Feynman
theorems. Applications of these operator methods to the calculation
of eigenvalues, matrix elements, and wavefunctions are discussed in
detail. This volume provides an outstanding introduction to the use
of operator methods in quantum mechanics, and also serves as a
reference work on this topic. As such it is an excellent complement
to senior and graduate courses in quantum mechanics. Although
primarily a book on applications of operator methods, the
presentation is made self-contained by the inclusion of an
introductory chapter on the formalism of quantum mechanics.
Additional background material supplements the volume at various
points in the text. Although there has been much research on
operator methods to solve quantum mechanical problems, until now
many of these results have remained scattered throughout the
literature. Nonspecialists, as well as graduate and upper division
students in physics will find this accessible volume to be
essential reading in theoretical physics.
This book is a long-term history of optics, from early Greek
theories of vision to the nineteenth-century victory of the wave
theory of light. It shows how light gradually became the central
entity of a domain of physics that no longer referred to the
functioning of the eye; it retraces the subsequent competition
between medium-based and corpuscular concepts of light; and it
details the nineteenth-century flourishing of mechanical ether
theories. The author critically exploits and sometimes completes
the more specialized histories that have flourished in the past few
years. The resulting synthesis brings out the actors' long-term
memory, their dependence on broad cultural shifts, and the
evolution of disciplinary divisions and connections. Conceptual
precision, textual concision, and abundant illustration make the
book accessible to a broad variety of readers interested in the
origins of modern optics.
Get the answers you need at your fingertips faster than any other
source. Success in Physics is critical when entering the growing
fields of technology, computer science and engineering that will
support our future progress and innovation with breakthroughs and
advances. To help retain the facts, equations and concepts
essential to success in class and beyond, these 6 laminated pages
can be referenced quickly and easily while studying, as a refresher
before exams or even as a desktop reference beyond school. Expertly
written by author, editor and professor Brett Kaabel PhD, and
designed for quick use and high retention. Be sure to get our
original Physics guide and Physics 2 for more complete coverage and
better grades for an unmatched value. 6 page laminated guide
includes: Introduction, Constants & Definitions Classical
Mechanics Kinematics, Newton's Laws Work & Kinetic Energy,
Potential Energy (U) Conservation of Energy, Momentum Simple
Harmonic Motion (SHM) Gravitation Thermodynamics Temperature Scales
Zeroth Law, First Law & Second Law of Thermodynamics Thermal
Properties of Systems Kinetic Theory of Gasses Waves Types of Waves
Transverse vs. Longitudinal Waves Wave Equation Electromagnetism
Electric Charge, Electric Field Magnetic Field, Magnetic Fluz
Gauss's Law for Magnetism Faraday's Law of Induction
Electromagnetic Waves, Electric Circuits Special Relativity
Einstein's Postulates, Time Dilation Length Contraction Lorentz
Transformation, Velocity Transformation Relativistic Doppler Effect
Relativistic Energy & Momentum Quantum Mechanics Quantized
Atomic Energy Levels Nuclear Physics Atoms, Nuclei, Nuclear Forces
Radioactivity, Nuclear Reactions Force Carriers
Polymeric materials have been and continue to be a focus of
research in the development of materials for energy conversion,
storage and delivery applications (fuel cells, batteries,
photovoltaics, capacitors, etc.). Significant growth in this field
started in the early 1990s and has continued to grow quite
substantially since that time. Polymeric materials now have a
prominent place in energy research.
For polymers, particularly polyelectrolytes, being used in fuel
cell and battery applications, the importance of chain
microstructure, chain dynamics, and nanoscale morphology on the
overall performance characteristics of these materials cannot be
overstated. As further advancements are made in polymer chemistry,
control of nanostructure and characterization, there is a necessity
for organized forums that foster cross-fertilization of knowledge
and ideas between experts in polymer chemistry, chemical
engineering, and polymer physics. This volume is the result of such
a forum.
Most of the chapters in this book are based on a cross-section of
the oral presentations in a symposium on Polymers for Energy
Storage and Delivery held in March of 2011 as part of the 241st ACS
National Meeting & Exposition (Anaheim, CA). The book contains
17 chapters presented in two parts. Part one focuses on polymers
for battery applications and will cover theory and modeling, novel
materials, and materials characterization. Professor Janna Maranas
has provided an excellent review of the current state of
understanding in polyelectrolytes as ion conductors in batteries.
Part two will focus on polymers for fuel cells and will cover novel
materials, transport, and materials characterization with a brief
introduction into the history of polyelectrolytes for fuel cells
and the classes of materials being pursued. Realizing the common
role that nanostructure plays in both battery and fuel cell
applications, Professor Moon Jeong Park and coworkers have also
contributed a chapter demonstrating the role of nanostructured
polyelectrolyte systems in energy storage and delivery. In
addition, the editors are pleased to have a chapter-contributed by
Professor Howard Wang and staff scientists of the NIST Center for
Neutron Research-on the most state-of-art, in-situ neutron methods
for studying lithium ion batteries.
Updated and expanded! Reviews the theory, materials, and processes
that are used in the lithographic process. Opens with a brief
historical introduction to the advances in microlithography.
Discusses four major topics: the physics of the lithographic
process, organic resist materials, resist processing, and plasma
etching. Designed as a tutorial for researchers with no experience
in the field, as well as those experienced in microlithography.
Will also prove invaluable to those already involved in
microlithography. Includes numerous references for more detailed
reading on specific aspects of microlithography.
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