Zobrazeno 1 - 10
of 17 470
pro vyhledávání: '"A. Ekström"'
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
We discuss emulators from the ab initio symmetry-adapted no-core shell-model framework for studying the formation of alpha clustering and collective properties without effective charges. We present a new type of an emulator, one that utilizes the eig
Externí odkaz:
https://doaj.org/article/52710f4ed8204f77ac3a1a5e8de912fc
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
Ab initio has been used as a label in nuclear theory for over two decades. Its meaning has evolved and broadened over the years. We present our interpretation, briefly review its historical use, and discuss its present-day relation to theoretical unc
Externí odkaz:
https://doaj.org/article/d11688786ae94791ae6014331666249f
Autor:
Hansen, Thomas Ekström, Brady, Edwin
We present an automated framework for solidifying the cohesion between software specifications, their dependently typed models, and implementation at compile time. Model Checking and type checking are currently separate techniques for automatically v
Externí odkaz:
http://arxiv.org/abs/2407.12726
Autor:
Sibony, Yves, Shepherd, Kendall G., Yusof, Norhasliza, Hirschi, Raphael, Chambers, Caitlan, Tsiatsiou, Sophie, Nandal, Devesh, Sciarini, Luca, Moyano, Facundo D., Bétrisey, Jérôme, Buldgen, Gaël, Georgy, Cyril, Ekström, Sylvia, Eggenberger, Patrick, Meynet, Georges
Grids of stellar evolution models with rotation using the Geneva stellar evolution code (Genec) have been published for a wide range of metallicities. We introduce the last remaining grid of Genec models, with a metallicity of $Z=10^{-5}$. We study t
Externí odkaz:
http://arxiv.org/abs/2407.06739
Autor:
Nandal, Devesh, Zwick, Lorenz, Whalen, Daniel J., Mayer, Lucio, Ekström, Sylvia, Meynet, Georges
The first stars formed over five orders of magnitude in mass by accretion in primordial dark matter halos. We study the evolution of massive, very massive and supermassive primordial (Pop III) stars over nine orders of magnitude in accretion rate. We
Externí odkaz:
http://arxiv.org/abs/2407.06994
We study a signaling game between an employer and a potential employee, where the employee has private information regarding their production capacity. At the initial stage, the employee communicates a salary claim, after which the true production ca
Externí odkaz:
http://arxiv.org/abs/2406.17380
Accreting supermassive stars of $\gtrsim 10^{5}\,M_\odot$ will eventually collapse directly to a black hole via the general relativistic (GR) instability. Such direct collapses of supermassive stars are thought to be a possible formation channel for
Externí odkaz:
http://arxiv.org/abs/2406.18040
We study a model of irreversible investment for a decision-maker who has the possibility to gradually invest in a project with unknown value. In this setting, we introduce and explore a feature of "learning-by-doing", where the learning rate of the u
Externí odkaz:
http://arxiv.org/abs/2406.16493
In a world where more decisions are made using artificial intelligence, it is of utmost importance to ensure these decisions are well-grounded. Neural networks are the modern building blocks for artificial intelligence. Modern neural network-based co
Externí odkaz:
http://arxiv.org/abs/2406.13008
Autor:
Dumont, T., Monpribat, E., Courtin, S., Choplin, A., Bonhomme, A., Ekström, S., Heine, M., Curien, D., Nippert, J., Meynet, G.
Publikováno v:
A&A 688, A115 (2024)
Nuclear reactions drive the stellar evolution and contribute to the stellar and galactic chemicals abundances. New determinations of the nuclear reaction rates for key fusion reactions of stellar evolution are now available, paving the way to improve
Externí odkaz:
http://arxiv.org/abs/2404.18662