Zobrazeno 1 - 10
of 10 539
pro vyhledávání: '"Lust A"'
We reexamine a dynamical dark matter model with Kaluza-Klein (KK) towers of gravitons and neutrinos fitting together in the dark dimension. We show that even though gravitational decays of neutrino KK towers have little impact in cosmology the weak d
Externí odkaz:
http://arxiv.org/abs/2411.07029
Autor:
Cribiori, Niccolò, Lust, Dieter
We review the remarkable interplay between modular symmetries and supergravity, which has led to major advances in both physics and mathematics in recent decades. Our focus will be on four-dimensional models with $\mathcal{N}=1$ and $\mathcal{N}=2$ l
Externí odkaz:
http://arxiv.org/abs/2411.06516
Experimental searches for supersymmetry (SUSY) are entering a new era. The failure to observe signals of sparticle production at the Large Hadron Collider (LHC) has eroded the central motivation for SUSY breaking at the weak scale. However, String Th
Externí odkaz:
http://arxiv.org/abs/2410.16342
Publikováno v:
Phys. Dark Univ. 46 (2024) 101681
Primordial black holes (PBHs) hidden in the incredible bulk of the dark dimension could escape constraints from non-observation of their Hawking radiation. Since these five-dimensional (5D) PBHs are bigger, colder, and longer-lived than usual 4D PBHs
Externí odkaz:
http://arxiv.org/abs/2409.12904
Autor:
Basile, Ivano, Lust, Dieter
We motivate a relation between dark energy and the scale of new physics in weakly coupled string theory. This mixing between infrared and ultraviolet physics leads to a unique corner for real-world phenomenology: barring fine-tunings, we are naturall
Externí odkaz:
http://arxiv.org/abs/2409.12231
Publikováno v:
Fortschr. Phys. 2024, 2400176
In this work, we discuss the matching of the Vilkovisky-DeWitt effective action of quantum gravity to an example of an ultra-violet complete theory of quantum gravity. We show how this matching enables a calculation of the local Wilson coefficients o
Externí odkaz:
http://arxiv.org/abs/2408.15146
Autor:
De Sensi, Daniele, Pichetti, Lorenzo, Vella, Flavio, De Matteis, Tiziano, Ren, Zebin, Fusco, Luigi, Turisini, Matteo, Cesarini, Daniele, Lust, Kurt, Trivedi, Animesh, Roweth, Duncan, Spiga, Filippo, Di Girolamo, Salvatore, Hoefler, Torsten
Publikováno v:
Published in Proceedings of The International Conference for High Performance Computing Networking, Storage, and Analysis (SC '24) (2024)
Multi-GPU nodes are increasingly common in the rapidly evolving landscape of exascale supercomputers. On these systems, GPUs on the same node are connected through dedicated networks, with bandwidths up to a few terabits per second. However, gauging
Externí odkaz:
http://arxiv.org/abs/2408.14090
Publikováno v:
Phys. Dark Univ. 46 (2024) 101714
The dark dimension provides a mechanism to resolve the cosmological hierarchy problem and assembles a colosseum for dark matter contenders. In a series of recent publications we investigated whether primordial black holes (PBHs) perceiving the dark d
Externí odkaz:
http://arxiv.org/abs/2407.21031
By combining swampland conjectures with observational data, it was recently suggested that the cosmological hierarchy problem (i.e. the smallness of the dark energy in Planck units) could be understood as an asymptotic limit in field space, correspon
Externí odkaz:
http://arxiv.org/abs/2405.04427
Publikováno v:
Phys. Dark Univ. 46 (2024) 101715
Promptly after high-resolution experiments harbinger the field of precision cosmology low- and high-redshift observations abruptly gave rise to a tension in the measurement of the present-day expansion rate of the Universe ($H_0$) and the clustering
Externí odkaz:
http://arxiv.org/abs/2404.17334