Quantum Field Theory is now well recognized as a powerful tool not only in Particle Physics but also in Nuclear Physics, Condensed Matter Physics, Solid State Physics and even in Mathematics. In this book some current applications of Quantum Field Theory to those areas of modern physics and mathematics are collected, in order to offer a deeper understanding of known facts and unsolved problems.
This book is a collection of some of the invited talks presented at the international
meeting held at the Max Planck Institut fiir Physik komplexer Systeme, Dresden,
Germany during August 6-30, 2001, on the rapidly developing field of nanoscale
science and bio-electronics (http://www.mpipks-dresden.mpg.de/~nanobio/).
Semiconductor physics has experienced unprecedented developments over the second
half of the twentieth century. The exponential growth in microelectronic processing
power and the size of dynamic memories has been achieved by significant downscahng
of the minimum feature size.
Nanoscale physics, nowadays one of the most topical research subjects, has
two major areas of focus. One is the important field of potential applications
bearing the promise of a great variety of materials having specific properties
that are desirable in daily life. Even more fascinating to the researcher in
physics are the fundamental aspects where quantum mechanics is seen at work;
most macroscopic phenomena of nanoscale physics can only be understood and
described using quantum mechanics. The emphasis of the present volume is
on this latter aspect....
Putting the quantum into magnetism might, at first sight, seem like stating
the obvious; the exchange interactions leading to collective magnetic behavior
are, after all, a pure quantum effect. Yet, for many phenomena in magnetism
this underlying quantum nature may be safely ignored at least on the qualitative
level. The investigation of magnetic systems where quantum effects
play a dominant role and have to be accounted for in detail has, over the
last decades, evolved to be a field of very active research....
This volume includes papers presented at the XXII Solvay Conference on Physics, which took
place from the 24 to 29 November 2001 in the European Culture Centre of Delphi. The
Castle of Lamia hosted the events of the last day.
The Physics of Communication was the selected theme of the conference. The 5 sessions
reflected present challenging issues, namely Decoherence and Irreversibility, Non-locality and
Superluminosity, Photonics, Quantum Information and Communication, Quantum
Collection of research reports best university in 2007 honored the author: 12. Truong Van Nam, Nguyen Xuan Dung, study the effect of substituents on the properties of aniline by approximate methods AM1 quantum ... Quantum mechanics is one of the fundamental theory of physics. Quantum mechanics is an extension and supplement of Newtonian mechanics (also known as classical mechanics). It is the basis of many other disciplines of physics and chemistry as solid state physics, chemistry quantum particle physics.
Within the framework of the Walecka model (QHD-I) the renormalized effective Dirac equation and the kinetic equation for fermion are presented. In fact, the fermion propagator in the medium is dramatically different from that in the vacuum. The main feature is the treating of the fermion distribution in non equilibrium, which depends on the interaction rate involving temperature.
Plasticizers are used to increase the process-ability, flexibility, and durability of the material, and of course to reduce the cost in many cases. This edition covers introduction and applications of various types of plasticizers including those based on non-toxic and highly effective pyrrolidones, and a new source of Collagen based bio-plasticizers that can be obtained from discarded materials from a natural source; Jumbo Squid (Dosidicus gigas).
Nanomaterials, which are materials with structural units on a nanometer scale in at least one direction,
is the fastest growing area in materials science and engineering. Material properties become different
on the nanoscale: for example, the theoretical strength of materials can be reached or quantum effects
may appear. One-dimensional and quasi-one-dimensional materials such as nanotubes and nanowires
demonstrate many extreme properties that can be tuned by controlling their structure and diameter.
A new type of semiconductor laser is studied, in which injected carriers in the active region
are quantum mechanically confined in localized finite self-assembled wire-like quantumdash
(Qdash) structures that are varied in sizes and compositions. Effects of such carrier
distribution and quasi three-dimensional density of states contribute to a quasisupercontinuum
interband lasing characteristics, which is a new laser design platform as
compared to continuous broad emission spectrum generated by nonlinear media pumped
with ultrashort laser pulse....
Because of their apparent “simplicity” simple atoms present a great challenge
and temptation to experts in various branches of physics from fundamental problems
of particle physics to astrophysics, applied physics and metrology. This
book is based on the presentations at the International Conference on Precision
Physics of Simple Atomic Systems (PSAS 2002) whose primary target was to
provide an effective exchange between physicists from different fields.
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Effects of crossed states on photoluminescence excitation spectroscopy of InAs quantum dots
In the last few years, Nanoparticles and their applications dramatically diverted
science in the direction of brand new philosophy.
The properties of many conventional materials changed when formed from
nanoparticles. because nanoparticles have a greater surface area per weight than larger
particles which causes them to be more reactive and effective than other molecules.
Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: IAnisotropic Confinement, Electronic Coupling and Strain Induced Effects Detected by Valence-Band Anisotropy in Self-Assembled Quantum Dots
Semiconductor nanostructures are currently one of the largest and most exciting
areas in solid state physics. Low-dimensional electron systems (realized in
semiconductor quantum structures) are particularly appealing because they
allow one to study many-particle effects in reduced dimensions. Inelastic light
scattering gives direct access to the elementary excitations of those systems.
Nanotechnology has received tremendous interest over the last decade, not only from the
scientific community but also from a business perspective and from the general public.
Although nanotechnology is still at the largely unexplored frontier of science, it has the
potential for extremely exciting technological innovations that will have an enormous impact
on areas as diverse as information technology, medicine, energy supply and probably
many others. The miniaturization of devices and structures will impact the speed of devices
and information storage capacity.