|
Showing 1 - 4 of
4 matches in All Departments
The material collected in this book originated from lectures given
by authors over many years in Warsaw, Trieste, Schladming,
Istanbul, Goteborg and Boulder. There is no other comparable book
on group representations, neither in mathematical nor in physical
literature and it is hoped that this book will prove to be useful
in many areas of research. It is highly recommended as a textbook
for an advanced course in mathematical physics on Lie algebras, Lie
groups and their representations.
The borderline of quantum electrodynamics and quantum optics offer
spectacular results and problems concerning the foundations of
radiation theory. Perhaps the major new viewpoint that has emerged
from recent investigations is that one can now work inside a
time-dependent quantum process, whereas up to now all elementary
quantum processes were either stationary, or one worked with
asymptotic in-and out-states, i.e. an S-matrix approach. In
the-rirst part of this volume, the Quantum Electrodynamics, the
present status of the main approaches to this most accurate of all
physical theories are discussed: the Hamiltonian approach, the
Green's function approach with particular emphasis to bound state
problems, and the newer, nonperturbative approach. The latest
numerical results on radiative corrections, Lamb shifts and
anomalous magnetic moments are reviewed with new results for high Z
atoms. Also discussed are different theoretical interpretations of
the radiative phenomena as due to quantized field vacuum
fluctuations or due to self energy. A small group of contributions
are devoted to the physics and mathematical description of decaying
or unstable states in quantum theory. This remarkable phenomenon of
quantum theory still needs complete clarification, it is a
time-dependent phenomenon, which can be described also by
asymptotic S-matrix methods, but with complex energies.
|
You may like...
Warrior King
Wilbur Smith, Tom Harper
Hardcover
R385
R265
Discovery Miles 2 650
Just Once
Karen Kingsbury
Hardcover
R380
R304
Discovery Miles 3 040
Weyward
Emilia Hart
Paperback
R379
Discovery Miles 3 790
|