Zobrazeno 1 - 10
of 62
pro vyhledávání: '"van de Heisteeg, Damian"'
Identifying flux vacua in string theory with stabilized complex structure moduli presents a significant challenge, necessitating the minimization of a scalar potential complicated by infinitely many exponential corrections. In order to obtain exact r
Externí odkaz:
http://arxiv.org/abs/2404.12422
Autor:
van de Heisteeg, Damian
We explore the landscape of F-theory compactifications on Calabi--Yau fourfolds whose complex structure moduli space is the thrice-punctured sphere. As a first part, we enumerate all such Calabi--Yau fourfolds under the additional requirement that it
Externí odkaz:
http://arxiv.org/abs/2404.03456
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
We study periods in an integral basis near all possible singularities in one-dimensional complex structure moduli spaces of Calabi-Yau threefolds. Near large complex structure points these asymptotic periods are well understood in terms of the topolo
Externí odkaz:
http://arxiv.org/abs/2306.01059
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 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:
van de Heisteeg, Damian
In this thesis we have studied various applications of asymptotic Hodge theory in string compactifications. This mathematical framework captures how physical couplings of the resulting effective theories behave near field space boundaries where the i
Externí odkaz:
http://arxiv.org/abs/2207.00303
The tadpole conjecture suggests that the complete stabilization of complex structure deformations in Type IIB and F-theory flux compactifications is severely obstructed by the tadpole bound on the fluxes. More precisely, it states that the stabilizat
Externí odkaz:
http://arxiv.org/abs/2204.05331
We present a novel strategy to systematically study complex-structure moduli stabilization in Type IIB and F-theory flux compactifications. In particular, we determine vacua in any asymptotic regime of the complex-structure moduli space by exploiting
Externí odkaz:
http://arxiv.org/abs/2110.05511