Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Wiesner, Max"'
We analyse divergences of the scalar curvature $R$ of the vector multiplet moduli space of type IIA string theory compactified on a Calabi--Yau $X$, along infinite-distance large volume limits. Extending previous results, we classify the origin of th
Externí odkaz:
http://arxiv.org/abs/2409.02991
Autor:
Cvetič, Mirjam, Wiesner, Max
We investigate the interior of the moduli space of four-dimensional $\mathcal{N}=1$ theories of gravity arising from compactifications of the $E_8\times E_8$ heterotic string on Calabi-Yau threefolds. By studying the threshold corrections to the coup
Externí odkaz:
http://arxiv.org/abs/2408.12458
We examine the minimal constraints imposed by the Weak Gravity Conjecture (WGC) on the particle spectrum of a quantum gravity theory. Towers of super-extremal states have previously been argued to be required for consistency of the WGC under circle r
Externí odkaz:
http://arxiv.org/abs/2312.04619
In a quantum theory of gravity, the species scale $\Lambda_s$ can be defined as the scale at which corrections to the Einstein action become important or alternatively as codifying the "number of light degrees of freedom", due to the fact that $\Lamb
Externí odkaz:
http://arxiv.org/abs/2310.07213
In the context of quantum gravitational systems, we place bounds on regions in field space with slowly varying positive potentials. Using the fact that $V<\Lambda_s^2$, where $\Lambda_s(\phi)$ is the species scale, and the emergent string conjecture,
Externí odkaz:
http://arxiv.org/abs/2305.07701
The species scale $\Lambda_s\leq M_{pl}$ serves as a UV cutoff in the gravitational sector of an EFT and can depend on the moduli of the theory as the spectrum of the theory varies. We argue that the dependence of the species scale $\Lambda_s (\phi)$
Externí odkaz:
http://arxiv.org/abs/2303.13580
The tower Weak Gravity Conjecture predicts infinitely many super-extremal states along every ray in the charge lattice of a consistent quantum gravity theory. We show this far-reaching claim in five-dimensional compactifications of M-theory on Calabi
Externí odkaz:
http://arxiv.org/abs/2212.09758
The counting of the number of light modes in a gravitational theory is captured by the notion of the `species scale', which serves as an effective UV cutoff below the Planck scale. We propose to define a moduli-dependent species scale in the context
Externí odkaz:
http://arxiv.org/abs/2212.06841
Autor:
Lüst, Severin, Wiesner, Max
We revisit moduli stabilization on Calabi-Yau manifolds with a discrete symmetry. Invariant fluxes allow for a truncation to a symmetric locus in complex structure moduli space and hence drastically reduce the moduli stabilization problem in its dime
Externí odkaz:
http://arxiv.org/abs/2211.05128
Autor:
Wiesner, Max
We consider 4d N=1 theories arising from F-theory compactifications on elliptically-fibered Calabi-Yau four-folds and investigate the non-perturbative structure of their scalar field space beyond the large volume/large complex structure regime. We fo
Externí odkaz:
http://arxiv.org/abs/2210.14238