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11 April 2021
 
  » arxiv » 1012.3972

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Moduli Stabilisation on the Worldsheet
Jawad Arshad ; Neil Lambert ; Andreas Recknagel ;
Date 17 Dec 2010
AbstractWe consider compactifications of type II string theory using exact internal CFT’s with central charge $c=9+epsilon$, $|epsilon| ll 1$, leading to an effective potential for the dilaton. For $epsilon>0$ the potential is positive and the dilaton is ultimately driven to weak coupling. For $epsilon<0$ the dilaton is driven to strong coupling, but we can stabilise the background by including D-branes. The resulting minimum admits an $AdS_4$ solution where the cosmological constant is of the order $epsilon^3$ and the string coupling constant is of order $epsilon$. Furthermore these CFT’s typically do not possess any massless or tachyonic modes. Thus these vacua provide exact CFT descriptions of moduli stabilisation in weakly coupled string theory.
Source arXiv, 1012.3972
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