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Giant tachyons in the landscape

Abstract : We study the dynamics of localized and fully backreacting anti-D3 branes at the tip of the Klebanov-Strassler geometry. We use a non-supersymmetric version of the Polchinski-Strassler analysis to compute the potential for anti-D3 branes to polarize into all kinds of five-brane shells in all possible directions. We find that generically there is a direction along which the brane-brane interaction is repulsive, which implies that anti-D3 branes are tachyonic. Hence, even though anti-D3 branes can polarize into five-branes, the solution will most likely be unstable. This indicates that anti-D3 brane uplift may not result in stable de Sitter vacua.
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Submitted on : Tuesday, April 13, 2021 - 11:04:07 AM
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Iosif Bena, Graña Mariana, Stanislav Kuperstein, Stefano Massai. Giant tachyons in the landscape. Journal of High Energy Physics, Springer Verlag (Germany), 2015, 02, pp.146. ⟨10.1007/JHEP02(2015)146⟩. ⟨cea-01180214⟩

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