Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Schachner, Andreas"'
Autor:
Quevedo, Fernando, Schachner, Andreas
These lecture notes cover the Standard Model (SM) course for Part III of the Cambridge Mathematical Tripos, taught during the years 2020-2023. The course comprised 25 lectures and 4 example classes. Following a brief historical introduction, the SM i
Externí odkaz:
http://arxiv.org/abs/2409.09211
We construct compactifications of type IIB string theory that yield, at leading order in the $\alpha^\prime$ and $g_s$ expansions, de Sitter vacua of the form envisioned by Kachru, Kallosh, Linde, and Trivedi. We specify explicit Calabi-Yau orientifo
Externí odkaz:
http://arxiv.org/abs/2406.13751
We implement Genetic Algorithms for triangulations of four-dimensional reflexive polytopes which induce Calabi-Yau threefold hypersurfaces via Batryev's construction. We demonstrate that such algorithms efficiently optimize physical observables such
Externí odkaz:
http://arxiv.org/abs/2405.08871
Autor:
Gendler, Naomi, MacFadden, Nate, McAllister, Liam, Moritz, Jakob, Nally, Richard, Schachner, Andreas, Stillman, Mike
We enumerate topologically-inequivalent compact Calabi-Yau threefold hypersurfaces. By computing arithmetic and algebraic invariants and the Gopakumar-Vafa invariants of curves, we prove that the number of distinct simply connected Calabi-Yau threefo
Externí odkaz:
http://arxiv.org/abs/2310.06820
Autor:
Krippendorf, Sven, Schachner, Andreas
In this note we construct large ensembles of supersymmetry breaking solutions arising in the context of flux compactifications of type IIB string theory. This class of solutions was previously proposed in arXiv:hep-th/0402135 for which we provide the
Externí odkaz:
http://arxiv.org/abs/2308.15525
In this note we explore the distribution of vacuum expectation values of the superpotential $W_0$ in explicit Type IIB flux compactifications. We show that the distribution can be approximated, universally across geometries, by a two-dimensional Gaus
Externí odkaz:
http://arxiv.org/abs/2307.15749
Moduli stabilisation in string compactifications with many light scalars remains a major blind-spot in the string landscape. In these regimes, analytic methods cease to work for generic choices of UV parameters which is why numerical techniques have
Externí odkaz:
http://arxiv.org/abs/2306.06160
Publikováno v:
JCAP 09 (2023) 006
The Cosmic Gravitational Wave Background (CGWB) is an irreducible background of gravitational waves generated by particle exchange in the early Universe plasma. Standard Model particles contribute to such a stochastic background with a peak at $f\sim
Externí odkaz:
http://arxiv.org/abs/2303.01548
We study the non-linear structure of Type IIB eight-derivative couplings involving the metric and the complexified three-form $G_3$. We show that, at the level of five-point string amplitudes, the kinematics in the maximally R-symmetry-violating sect
Externí odkaz:
http://arxiv.org/abs/2205.11530