Brane/flux annihilation in double-throat system

Abstract

We study the brane/flux annihilation in the double-throat system in which the corresponding cycles of two throats are homologically equivalent. When we put $$ \overline{\mathrm{D}3} $$ D 3 ¯ -branes at only one of throat tips, two throats are no longer identical. Then the brane/flux annihilation can be interpreted as the process for reducing the difference between two throat geometries through the transition to the supersymmetric vacuum. To see this, we describe the changes in the amounts of the NSNS 3-form flux supporting the B-cycle contained in two throat regions during the brane/flux annihilation. We also compare our analysis with the recently proposed thraxion scenario, which also describes the inequivalence of two throats caused by the different NSNS 3-form flux distributions in two throat regions.

Uplift and towers of states in warped throat

“…On the other hand, when more than two throats are related homologically, the length of each throat is shorter than log(Λ 3 0 /|z|) as the H 3 -flux accumulated in each throat is smaller than K [43,44]. Moreover, when D3-branes are located at the tip of only one of throats, the corresponding throat is no longer equivalent to other throats [45]. Then through the brane/flux annihilation, the uplift potential as well as the throat geometry changes until SUSY is restored.…”