Brief Summary of Each Supplement
Progress of Theoretical Physics Supplement No. 152
String Theory
Proceedings of he 17th Nishinomiya Yukawa Memorial Symposium
Edited by Masafumi Fukuma, Hiroshi Itoyama, Toshio Nakatsu and Asato Tsuchiya
This supplement contains lectures presented at the 17th Nishinomiya
Yukawa Memorial Symposium, ``String Theory", held at the Shukugawa City Hall
in Nishinomiya on November 12 and 13, 2002. This symposium was designed
to provide an opportunity to discuss the latest developments of
string theory and its implications in particle physics and cosmology.
Since mid 1980's, string perturbation theory has been vigorously
developed. Dualities among various string models as well as soliton
solutions of string theory called D-branes have been known since mid 1990's.
Several proposals on the constructive definition of string theory
have then appeared and certain correspondence between gauge fields
and strings has been revealed. In parallel to these,
exact low energy effective actions of field theories with N = 2
supersymmetry obtained in mid 1990's have continued to inspire us.
In this symposium, the forefronts of these ideas in the fall of 2002
were discussed. These include tachyon condensation in string (field)
theory, the standard model of elementary particles and beyond
as well as a new cosmological scenario obtained from string theory
with branes, a renewed form of AdS/CFT correspondence,
the exact prepotential as instanton sum, and an attempt to generate
four spacetime dimensions from matrices.
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