Results 1 to 10 of about 683 (126)
Flux Vacua and Branes of the Minimal Superstring [PDF]
We analyze exactly the simplest minimal superstring theory, using its dual matrix model. Its target space is one dimensional (the Liouville direction), and the background fields include a linear dilaton, a possible tachyon condensate, and RR flux. The theory has both charged and neutral branes, and these exhibit new and surprising phenomena. The smooth
David Shih, Nathan Seiberg
exaly +3 more sources
Symmetries of cosmological superstring vacua [PDF]
Abstract The concept of discrete scale-factor-duality transformations is extended to a full, continuous O(d, d) group. The action of the group transforms “cosmological” solutions of the low-energy, string-modified Einstein equations (including non-trivial dilaton and antisymmetric tensor fields) into other solutions, thus representing the natural ...
K.A. Meissner, G. Veneziano
exaly +2 more sources
The “landscape” of Pati–Salam heterotic superstring vacua [PDF]
AbstractThe main aspects of a recently developed method for classification of heterotic superstring vacua in the Free Fermionic Formulation are presented. Using these techniques we classify a big number of approximately 1015 heterotic string vacua with Pati–Salam, SU(4) × SU(2)L × SU(2)R gauge symmetry with respect to their main phenomenological ...
exaly +5 more sources
Non-perturbative stability of supergravity and superstring vacua
25 pages NSF-ITP-92-84, UPR-494-T, YCTP-P44 ...
Soo-Jong Rey +2 more
exaly +3 more sources
Geometry and Quantum Symmetries of Superstring Vacua [PDF]
We report on some recent progress which has been made in the understanding of general features of superstring compactifications. The following aspects are discussed: special geometry of the moduli space of (2,2) vacua, target-space duality symmetries, differential equations for the periods of holomorphic three-forms, and higher loop (genus) string ...
Ferrara S
exaly +2 more sources
Superstring Vacua of 4-dimensional PP-Waves with Enhanced Supersymmetry [PDF]
We study the superstring vacua constructed from the conformal field theories of the type H_4 x M, where H_4 denotes the super Nappi-Witten model (super WZW model on the 4-dimensional Heisenberg group H_4) and M denotes an arbitrary N=2 rational superconformal field theory with c=9.
Yasuaki Hikida, Yuji Sugawara
exaly +3 more sources
New N=1 supersymmetric 3-dimensional superstring vacua from U-manifolds [PDF]
12 pages ...
Gottfried Curio
exaly +3 more sources
Symmetries on the moduli space of (2,2) superstring vacua
Abstract Symmetries of the space of (2,2) string vacua for c = 3, 6, 9 are discussed in the context of orbifoldized Landau-Ginzburg theories. A general method for finding the maximal symmetry groups on the moduli space of untwisted marginal operators is presented, by studying deformations of superpotentials.
Amit Giveon
exaly +2 more sources
Classification of flat directions in perturbative heterotic superstring vacua with anomalous U(1) [PDF]
26 ...
Lisa Everett +2 more
exaly +3 more sources
Bound-states of D-branes in L–R asymmetric superstring vacua [PDF]
22 ...
Massimo Bianchi
exaly +4 more sources

