Results 31 to 40 of about 27,946 (159)
Towards a complete mass spectrum of type-IIB flux vacua at large complex structure
Journal of High Energy Physics, 2021 The large number of moduli fields arising in a generic string theory compactification makes a complete computation of the low energy effective theory infeasible.
Jose J. Blanco-Pillado +3 more
doaj +1 more source
Aspects of finite temperature corrections in string theory [PDF]
, 2011 PhDIn this thesis some aspects of temperature corrections in string theory are analyzed: in particular, we study the thermal contributions to the 4 dimensional effective potential arising from string theory compactifications.
Calo, Vincenzo
core +4 more sources
On the stability of string theory vacua
Journal of High Energy Physics, 2022 Vacuum compactifications may suffer from instabilities under small perturbations or tunnel effects; both are difficult to analyze. In this paper we consider the issue from a higher-dimensional perspective.
Suvendu Giri +2 more
doaj +1 more source
Top mass and classification of heterotic superstring vacua
, 2012 We consider a class of Z2 ×Z2 heterotic superstring vacua, characterised by SO(10) gauge symmetry broken to the Pati–Salam gauge group, SU(4)×SU(2)L ×SU(2)R, by the use of a discrete Wilson line.
Ioannis Rizos
semanticscholar +1 more source
Bound-states of D-branes in L–R asymmetric superstring vacua [PDF]
, 2008 We discuss bound-states of D-branes in truly L–R asymmetric and thus non-geometric Type II vacuum configurations with extended supersymmetry. We argue for their stability as a result of residual supersymmetry and coupling to R–R potentials surviving in ...
M. Bianchi
semanticscholar +1 more source
Fermionic T-duality and U-duality in type II supergravity [PDF]
, 2011 PhDThis thesis deals with the two duality symmetries of N = 2 D = 10 supergravity theories that are descendant from the full superstring theory: fermionic T-duality and U-duality.
Bakhmatov, Ilya
core +4 more sources
, 2007 15 pagesWe argue that tachyon-free type I string vacua with supersymmetry breaking in the open sector at the string scale can be interpreted, via S and T-duality arguments, as metastable vacua of supersymmetric type I superstring.
Angelantonj, Carlo +2 more
core +2 more sources
From Minkowski to de Sitter in multifield no-scale models
Journal of High Energy Physics, 2019 We show the uniqueness of superpotentials leading to Minkowski vacua of single-field no-scale supergravity models, and the construction of dS/AdS solutions using pairs of these single-field Minkowski superpotentials.
John Ellis +4 more
doaj +1 more source
SPACE-TIME VARIABLE SUPERSTRING VACUA (CALABI-YAU COSMIC YARN) [PDF]
, 1993 In a general superstring vacuum configuration, the “internal” space (sector) varies in space-time. When this variation is nontrivial only in two spacelike dimensions, the vacuum contains static cosmic strings with finite energy per unit length and which ...
P. Green, Tristan Hubsch
semanticscholar +1 more source
Abelian F-theory models with charge-3 and charge-4 matter
Journal of High Energy Physics, 2018 This paper analyzes U(1) F-theory models admitting matter with charges q = 3 and 4. First, we systematically derive a q = 3 construction that generalizes the previous q = 3 examples.
Nikhil Raghuram
doaj +1 more source