A LARGE CLASS OF NEW GRAVITATIONAL AND AXIONIC BACKGROUNDS FOR 4-DIMENSIONAL SUPERSTRINGS

Authors
KIRITSIS E KOUNNAS C
Citation
E. Kiritsis et C. Kounnas, A LARGE CLASS OF NEW GRAVITATIONAL AND AXIONIC BACKGROUNDS FOR 4-DIMENSIONAL SUPERSTRINGS, International journal of modern physics A, 9(8), 1994, pp. 1361-1393
Citations number
126
Categorie Soggetti
Physics, Particles & Fields","Physics, Nuclear
Journal title
International journal of modern physics A → ACNP
ISSN journal
0217751X
Volume
9
Issue
8
Year of publication
1994
Pages
1361 - 1393
Database
ISI
SICI code
0217-751X(1994)9:8<1361:ALCONG>2.0.ZU;2-P
Abstract
A large class of new 4D superstring vacua with nontrivial/singular geo metries, space-time supersymmetry and other background fields (axion, dilaton) are found. Killing symmetries are generic and are associated with nontrivial dilaton and antisymmetric tensor fields. Duality symme tries preserving N = 2 superconformal invariance are employed to gener ate a large class of explicit metrics for noncompact 4D Calabi-Yau man ifolds with Killing symmetries. We comment on some of our solutions wh ich have interesting singularity properties and cosmological interpret ation.