Noncommutative instantons revisited
INSTANTONS
CHAMPS DE JAUGE
PHYSIQUE
Abstract : We find a new gauge in which U(1) noncommutative instantons are explicitly non-singular on noncommutative R^4. We also present a pedagogical introduction to the noncommutative gauge theories.
NEKRASOV
P/02/19
IHES
03/2002
A4
14 f.
EN
TEXTE
PREPUBLICATION
P_02_19.pdf
2002
Noncommutative Field Theory
THEORIE QUANTIQUE DES CHAMPS
ESPACE-TEMPS
CINEMATIQUE
MODELES DES CORDES VIBRANTES
SOLITONS
INSTANTONS
Abstract : We review the generalization of field theory to space-time with noncommuting coordinates, starting with the basics and covering most of the active directions of research. Such theories are now known to emerge from limits of M theory and string theory, and to describe quantum Hall states. In the last few years they have been studied intensively, and many qualitatively new phenomena have been discovered, both on the classical and quantum level.
To appear in Reviews of Modern Physics.
NEKRASOV
DOUGLAS
P/01/27
IHES
06/2001
A4
31 f.
EN
TEXTE
PREPUBLICATION
P_01_27.pdf
2001