Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
N=2 WORLDSHEET INSTANTONS YIELD CUBIC SELF-DUAL YANG-MILLS
Autore:
LECHTENFELD O; SIEGEL W;
Indirizzi:
CERN,DIV THEORET PHYS CH-1211 GENEVA 23 SWITZERLAND SUNY STONY BROOK,INST THEORET PHYS STONY BROOK NY 11794 UNIV HANNOVER,INST THEORET PHYS D-30167 HANNOVER GERMANY
Titolo Testata:
Physics letters. Section B
fascicolo: 1-2, volume: 405, anno: 1997,
pagine: 49 - 54
SICI:
0370-2693(1997)405:1-2<49:NWIYCS>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
STRINGS; SUPERGRAVITY; QUANTIZATION; AMPLITUDES; GEOMETRY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
O. Lechtenfeld e W. Siegel, "N=2 WORLDSHEET INSTANTONS YIELD CUBIC SELF-DUAL YANG-MILLS", Physics letters. Section B, 405(1-2), 1997, pp. 49-54

Abstract

When the gauge instantons on the N = 2 string worldsheet are properlyincluded in the sum over topologies, the breaking of SO(2,2) Lorentz symmetry in R-2,R-2 is parametrized by a spacetime twister containing the string coupling and theta angle. The resulting (tree-level) effective action for the open string is not Yang's but Leznov's cubic actionfor self-dual Yang-Mills in a light-cone gauge. In the closed case, Plebanski's action for self-dual gravity gets modified analogously. In contrast to the N = 1 NSR string, picture-changing is not locally invertible, but produces a semi-infinite tower of massless physical stateswith ever-increasing spin, perhaps related to harmonic superspace. A truncation yields the two-field action of Chalmers and Siegel. (C) 1997 Published by Elsevier Science B.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/07/20 alle ore 16:20:18