Orateur
Description
Despite their consequential applications, certain aspects of metastable antibranes in warped throats are not yet fully understood. In this talk, I will introduce the Kachru-Pearson-Verlinde (KPV) state, a frequently-discussed exemplar metastable antibranes configuration, and briefly recap the decade-long discussions on its existence. I will present a perturbative supergravity solution that captures the backreaction of these metastable antibranes. This perturbative description is obtained via matched asymptotic expansion and approximates the metastable state when there is a large separation of scale, i.e. when the length scale associated to the branes is much smaller than the length scale associated to the background/bending. I'll discuss how this perturbative solution, taken in conjunction with previous results, serves as strong evidence in the discussion on the existence of the KPV state. If time permits, I will also introduce discussions on classical stability and discuss how our results can provide insights there.
This talk is based on a recent work with Vasilis Niarchos [2112.04514]. It is also greatly influenced by previous works [1812.01067] (PRL), [1904.13283] (JHEP), and [1912.04646] (JHEP) with Jay Armas, Vasilis Niarchos, Niels Obers, and Thomas Van Riet.
| Type of contribution | Contributed Talk or Poster |
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