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The 1982 Antwerp Advanced Study Institute on "Physics of Polarons
and Excitons in Polar Semiconductors and Ionic Crystals" took place
from July 26 till August 5 at the Conference Center Priorij Corsen
donk, a restored monastery, close to the city of Antwerp. It was
the seventh Institute in our series which started in 1971. This
Advanced Study Institute, which was held fifty years after Landau
introduced the polaron concept, can be considered as the third
major international symposium devoted to the physics of pola rons.
The first such symposium took place in St. Andrews in 1962 under
the title "Polarons and Excitons" [I]. The early theoretical
developments related to polarons were reviewed in depth at this
meeting; the derivation of the polaron hamiltonian by Frohlich, the
Frohlich weak coupling theory (and the equivalent weak coupling
canonical transformations), the Landau-Pekar and Bogolubov strong
coupling theory and the Feynman polaron model formulated with his
path integrals. The main emphasis was on the polaron self-energy,
effective mass and mobility. From the experimental side the first
evidence for polaron effects was provided by the pioneering
cyclotron and mobility measurements o~ the silver halides by F. e.
Brown and his group. Also the significance of polaron effects for
the under standing of excitons in ionic crystals was a central
topic in St. Andrews. The second Advanced Study Institute
concerning polaron physics was organized at the University of
Antwerp (R. U. C. A.
This book is a collection of some of the invited talks presented at
the international meeting held at the Max Planck Institut fuer
Physik Komplexer Systeme, Dresden, Germany during August 6-30,
2001, on the rapidly developing field of nanoscale science in
science and bio-electronics 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 memorie has been achieved by significant
downscaling of the minimum feature size. Smaller feature sizes
result in increased functional density, faster speed, and lower
costs. In this process one is reaching the limits where quantum
effects and fluctuations are beginning to play an important
role.
"This book reflects the achievements of the present times and
future directions of research on nanoscopic dimensions."
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