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Books > Science & Mathematics > Physics
The goal of this book is to introduce a reader to a new philosophy
of teaching and learning physics - Investigative Science Learning
Environment, or ISLE (pronounced as a small island). ISLE is an
example of an "intentional" approach to curriculum design and
learning activities (MacMillan and Garrison 1988 A Logical Theory
of Teaching: Erotetics and Intentionality). Intentionality means
that the process through which the learning occurs is as crucial
for learning as the final outcome or learned content. In ISLE, the
process through which students learn mirrors the practice of
physics.
While neutron halos were discovered 30 years ago, this is the first
book written on the subject of this exotic form of nuclei that
typically contain many more neutrons than stable isotopes of those
elements. It provides an introductory description of the halo and
outlines the discovery and evidence for its existence. It also
discusses different theoretical models of the halo's structure as
well as models and techniques in reaction theory that have allowed
us to study the halo. This is written at a level accessible to
graduate students starting a PhD in nuclear physics. Halo nuclei
are an exotic form of atomic nuclei that contain typically many
more neutrons than stable isotopes of those elements. To give you a
famous example, an atom of the element lithium has three electrons
orbiting a nucleus with three protons and, usually, either 3 or 4
neutrons. The difference in the number of neutrons gives us two
different isotopes of lithium, Li6 and Li7. But if you keep adding
neutrons to the nucleus you will eventually reach Li11, with still
3 protons (that means it's lithium) but with 8 neutrons. This
nucleus is so neutron-rich that the last two are very weakly bound
to the rest of the nucleus (a Li9 core). What happens is a quantum
mechanical effect: the two outer neutrons float around beyond the
rest of the nuclear core at a distance that is beyond the range of
the force that is holding them to the core. This is utterly
counterintuitive. It means the nucleus looks like a core plus
extended diffuse cloud of neutron probability: the halo. The author
of the book, Jim Al-Khalili, is a theoretician who published some
of the key papers on the structure of the halo in the mid and late
90s and was the first to determine its true size. This monograph is
based on review articles he has written on the mathematical models
used to determine the halo structure and the reactions used to
model that structure.
Electrostatic forces are essential for the hierarchical structure
of matter: electrons are bound to the atomic nucleus by
electrostatic forces; atoms carry (partial) charges and ions with
opposite charges attract and form (chemical) bonds. Small residual
electrostatic forces between molecules allow them to form
macroscopic structures such as crystals. Electrostatic interactions
explain pseudo-forces used in popular computer programs used to
model properties of atoms, molecules, and proteins. By beginning
with the basics and then diving deeper into the topic, this book
aims to familiarize the reader with electrostatic forces at the
atomic and molecular level.
Atomic Force Microscopy for Nanoscale Biophysics: From Single
Molecules to Living Cells summarizes the applications of atomic
force microscopy for the investigation of biomolecules and cells.
The book discusses the methodology of AFM-based biomedical
detection, diverse biological systems, and the combination of AFM
with other complementary techniques. These state-of-the-art
chapters empower researchers to address biological issues through
the application of atomic force microscopy. Atomic force microscopy
(AFM) is a unique, multifunctional tool for investigating the
structures and properties of living biological systems under
aqueous conditions with unprecedented spatiotemporal resolution.
This book uses art photography as a point of departure for learning
about physics, while also using physics as a point of departure for
asking fundamental questions about the nature of photography as an
art. Although not a how-to manual, the topics center around
hands-on applications, sometimes illustrated by photographic
processes that are inexpensive and easily accessible to students
(including a versatile new process developed by the author, and
first described in print in this series). A central theme is the
connection between the physical interaction of light and matter on
the one hand, and the artistry of the photographic processes and
their results on the other. This is the third volume in this
three-part series that uses art photography as a point of departure
for learning about physics, while also using physics as a point of
departure for asking fundamental questions about the nature of
photography as an art. It focuses on the physics and chemistry of
photographic light-sensitive materials, as well as the human
retina. It also considers the fundamental nature of digital
photography and its relationship to the analog photography that
preceded it.
It is commonly known that three or more particles interacting via a
two-body potential is an intractable problem. However, similar
systems confined to one dimension yield exactly solvable equations,
which have seeded widely pursued studies of one-dimensional n-body
problems. The interest in these investigations is justified by
their rich and quantitative insights into real-world classical and
quantum problems, birthing a field that is the subject of this
book. Spanning four bulk chapters, this book is written with the
hope that readers come to appreciate the beauty of the mathematical
results concerning the models of many-particle systems, such as the
interaction between light particles and infinitely massive
particles, as well as interacting quasiparticles. As the book
discusses several unsolved problems in the subject, it functions as
an insightful resource for researchers working in this branch of
mathematical physics.In Chapter 1, the author first introduces
readers to interesting problems in mathematical physics, with the
prime objective of finding integrals of motion for classical
many-particle systems as well as the exact solutions of the
corresponding equations of motions. For these studied systems,
their quantum mechanical analogue is then developed in Chapter 2.
In Chapter 3, the book focuses on a quintessential problem in the
quantum theory of magnetism: namely, to find all integrable
one-dimensional systems involving quasiparticles of interacting
one-half spins. Readers will study the integrable periodic chains
of interacting one-half spins and discover the integrals of motion
for such systems, as well as the eigenvectors of their
corresponding Hamiltonians. In the last chapter, readers will study
about integrable systems of quantum particles, with spin and mutual
interactions involving rational, trigonometric, or elliptic
potentials.
This book demonstrates Microsoft EXCEL-based Fourier transform of
selected physics examples. Spectral density of the auto-regression
process is also described in relation to Fourier transform. Rather
than offering rigorous mathematics, readers will "try and feel"
Fourier transform for themselves through the examples. Readers can
also acquire and analyze their own data following the step-by-step
procedure explained in this book. A hands-on acoustic spectral
analysis can be one of the ideal long-term student projects.
The new field of physical biology fuses biology and physics. New
technologies have allowed researchers to observe the inner workings
of the living cell, one cell at a time. With an abundance of new
data collected on individual cells, including observations of
individual molecules and their interactions, researchers are
developing a quantitative, physics-based understanding of life at
the molecular level. They are building detailed models of how cells
use molecular circuits to gather and process information, signal to
each other, manage noise and variability, and adapt to their
environment. This book narrows down the scope of physical biology
by focusing on the microbial cell. It explores the physical
phenomena of noise, feedback, and variability that arise in the
cellular information-processing circuits used by bacteria. It looks
at the microbe from a physics perspective, to ask how the cell
optimizes its function to live within the constraints of physics.
It introduces a physical and information based -- as opposed to
microbiological -- perspective on communication and signaling
between microbes. The book is aimed at non-expert scientists who
wish to understand some of the most important emerging themes of
physical biology, and to see how they help us to understand the
most basic forms of life.
Holographic dualities are at the forefront of contemporary physics
research, peering into the fundamental nature of our universe and
providing best attempt answers to humankind's bold questions about
basic physical phenomena. Yet, the concepts, ideas and mathematical
rigors associated with these dualities have long been reserved for
the specific field researchers and experts. This book shatters this
long held paradigm by bringing several aspects of holography
research into the class room, starting at the college physics level
and moving up from there.
Optical second harmonic and sum-frequency generation has evolved
into a useful spectroscopic tool for material characterization,
especially as a viable and powerful technique for probing surfaces
and interfaces. This book serves as an introduction on the
technique. It provides a comprehensible description on the basics
of the technique and gives detailed accounts with illustrating
examples on the wide range of applications of the technique. It
clearly points out the unique capabilities of the technique as a
spectroscopic tool for studies of bulk and interface structures in
different disciplines.This book is an updated version of an earlier
book on the same subject, but it puts more emphasis on physical
concepts and description. It underscores recent advances of
sum-frequency spectroscopy at the technical front as well as over
its wide range of applications, with the author's perspective in
each area. Most chapters end with a section of summary and
prospects that hopefully can help stimulate interest to further
develop the technique and explore possibilities of applying the
technique.
This book summarizes the recent development of nuclear science as
an important part of mesoscopic physics, the intermediate world
between the macroscopic and microscopic. This fast developing area
with many practical applications includes complex atoms, molecules
(including biological), nuclei, small-scale solid state systems,
and future quantum computers. The complexity of the problem appears
due to the richness of problems, from the necessity to study
individual quantum levels, to the fundamental features of
statistics and thermodynamics.
Energy and power are fundamental concepts in electromagnetism and
circuit theory, as well as in optics, signal processing, power
engineering, electrical machines, and power electronics. However,
in crossing the disciplinary borders, we encounter understanding
difficulties due to (1) the many possible mathematical
representations of the same physical objects, and (2) the many
possible physical interpretations of the same mathematical
entities. The monograph proposes a quantum and a relativistic
approach to electromagnetic power theory that is based on recent
advances in physics and mathematics. The book takes a fresh look at
old debates related to the significance of the Poynting theorem and
the interpretation of reactive power. Reformulated in the
mathematical language of geometric algebra, the new expression of
electromagnetic power reflects the laws of conservation of
energy-momentum in fields and circuits. The monograph offers a
mathematically consistent and a physically coherent interpretation
of the power concept and of the mechanism of power transmission at
the subatomic (mesoscopic) level. The monograph proves
(paraphrasing Heaviside) that there is no finality in the
development of a vibrant discipline: power theory.
Monte Carlo methods have been very prominent in computer simulation
of various systems in physics, chemistry, biology, and materials
science. This book focuses on the discussion and path-integral
quantum Monte Carlo methods in many-body physics and provides a
concise but complete introduction to the Metropolis algorithm and
its applications in these two techniques. To explore the schemes in
clarity, several quantum many-body systems are analysed and studied
in detail. The book includes exercises to help digest the materials
covered. It can be used as a tutorial to learn the discussion and
path-integral Monte Carlo or a recipe for developing new research
in the reader's own area. Two complete Java programs, one for the
discussion Monte Carlo of 4^He clusters on a graphite surface and
the other for the path-integral Monte Carlo of cold atoms in a
potential trap, are ready for download and adoption.
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