scholarly journals Superstring cosmology for N4 = 1 → 0 superstring vacua

2011 ◽  
Vol 59 (9) ◽  
pp. 861-895 ◽  
Author(s):  
J. Estes ◽  
C. Kounnas ◽  
H. Partouche
Keyword(s):  
Superstring Vacua

scholarly journals Explicit superstring vacua in a background of gravitational waves and dilaton

1995 ◽  
Vol 108 (1) ◽  
pp. 97-103
Author(s):  
A. Peterman ◽  
A. Zichichi
Keyword(s):  
Superstring Vacua ◽  
Gravitational Waves

scholarly journals Superstring Vacua of 4-dimensional PP-Waves with Enhanced Supersymmetry

2002 ◽  
Vol 2002 (10) ◽  
pp. 067-067 ◽  
Author(s):  
Yasuaki Hikida ◽  
Yuji Sugawara
Keyword(s):  
Superstring Vacua

scholarly journals A LARGE CLASS OF NEW GRAVITATIONAL AND AXIONIC BACKGROUNDS FOR FOUR-DIMENSIONAL SUPERSTRINGS

1994 ◽  
Vol 09 (08) ◽  
pp. 1361-1393 ◽  
Author(s):  
E. KIRITSIS ◽  
C. KOUNNAS ◽  
D. LÜST
Keyword(s):  
Superstring Vacua ◽  
Large Class ◽  
Space Time ◽  
Antisymmetric Tensor ◽  
Tensor Fields ◽  
Background Fields ◽  
Killing Symmetries ◽  
Calabi Yau Manifolds

A large class of new 4D superstring vacua with nontrivial/singular geometries, 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 symmetries preserving N = 2 superconformal invariance are employed to generate a large class of explicit metrics for noncompact 4D Calabi–Yau manifolds with Killing symmetries. We comment on some of our solutions which have interesting singularity properties and cosmological interpretation.

EXACT YUKAWA COUPLINGS FROM TOPOLOGICAL LANDAU–GINZBURG MODELS

1991 ◽  
Vol 06 (24) ◽  
pp. 2211-2215 ◽  
Author(s):  
AMIT GIVEON ◽  
DIRK-JAN SMIT
Keyword(s):  
Superstring Vacua ◽  
Yukawa Couplings ◽  
Matter Fields

The Yukawa couplings of (2, 2) superstring vacua of matter fields, corresponding to untwisted (c, c) marginal chiral states, are computed exactly, as functions of the moduli, using d = 3 topological Landau–Ginzburg models.

Holomorphic structure of superstring vacua

1987 ◽  
Vol 4 (5) ◽  
pp. 1183-1192 ◽  
Author(s):  
K Pilch ◽  
N P Warner
Keyword(s):  
Superstring Vacua ◽  
Holomorphic Structure
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