Moduli Evolution in the Presence of Matter Fields and Flux Compactification
نویسندگان
چکیده
We provide a detailed analysis of the dynamics of moduli fields in the KKLT scenario coupled to a Polonyi field, which plays the role of a hidden matter sector field. It was previously shown that such matter fields can uplift AdS vacua to Minkowski or de Sitter vacua. Additionally, we take a background fluid into account (which can be either matter or radiation), which aids moduli stabilisation. Our analysis shows that the presence of the matter field further aids stabilisation, due to a new scaling regime. We study the system both analytically and numerically.
منابع مشابه
On Flux Compactification and Moduli Stabilization
We study the effect of adding charged matter fields to both D3 and D7 branes in type IIB string theory compactification with fluxes. Generically, charged matter fields induce additional terms to the Kähler form, the superpotential and the D-terms. These terms allow for minima with positive or zero cosmological constants, even in the absence of non-perturbative effects. We show this result first...
متن کاملSparticle spectrum and EWSB of mixed modulus-anomaly mediation in fluxed string compactification models
We examine low energy sparticle mass-spectrum and electroweak symmetry breaking (EWSB) in the mixed modulus-anomaly mediation which is naturally realized in KKLT flux compactification. We find that the anomaly-mediation effectively lowers messenger scale in the moduli-mediation and leads to ’squeezed’ mass-spectrum distinct from any known mediation mechanisms. The lightest neutralino typically ...
متن کاملGeneralized Cohomologies and Supersymmetry
We show that the complex cohomologies of Bott, Chern, and Aeppli and the symplectic cohomologies of Tseng and Yau arise in the context of type II string theory. Specifically, they can be used to count a subset of scalar moduli fields in Minkowski compactification with RR fluxes in the presence of either O5/D5 or O6/D6 brane sources, respectively. Further, we introduce a new set of cohomologies ...
متن کاملU(1)R-mediated supersymmetry breaking from a six-dimensional flux compactification
We study the U(1)R-mediated supersymmetry breaking in a flux compactification of 6D chiral gauged supergravity with codimension-two branes. We consider a concrete model with manifest U(1)R invariance for moduli stabilization and visible sector in the context of 4D effective supergravity with gauged U(1)R and determine soft scalar masses in the visible sector mainly by a nonzero U(1)R D-term. We...
متن کاملModuli Stabilization with Long Winding Strings
Stabilizing all of the modulus fields coming from compactifications of string theory on internal manifolds is one of the outstanding challenges for string cosmology. Here, in a simple example of toroidal compactification, we study the dynamics of the moduli fields corresponding to the size and shape of the torus along with the ambient flux and long strings winding both internal directions. It i...
متن کامل