Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Sven Krippendorf"'
Autor:
Lara B. Anderson, Mathis Gerdes, James Gray, Sven Krippendorf, Nikhil Raghuram, Fabian Ruehle
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-45 (2021)
Abstract We use machine learning to approximate Calabi-Yau and SU(3)-structure metrics, including for the first time complex structure moduli dependence. Our new methods furthermore improve existing numerical approximations in terms of accuracy and s
Externí odkaz:
https://doaj.org/article/da2e0587fa0a461b866f721ac8ce14f1
Publikováno v:
Machine Learning: Science and Technology, Vol 4, Iss 3, p 035040 (2023)
A theory of neural networks (NNs) built upon collective variables would provide scientists with the tools to better understand the learning process at every stage. In this work, we introduce two such variables, the entropy and the trace of the empiri
Externí odkaz:
https://doaj.org/article/14247b194d134c65947bc1e874dd63e3
Autor:
Mathis Gerdes, Sven Krippendorf
Publikováno v:
Machine Learning: Science and Technology, Vol 4, Iss 2, p 025031 (2023)
We present the first version of CYJAX, a package for machine learning Calabi–Yau metrics using JAX. It is meant to be accessible both as a top-level tool and as a library of modular functions. CYJAX is currently centered around the algebraic ansatz
Externí odkaz:
https://doaj.org/article/ce67d8a3e0674a86822ec4b087140d2c
Autor:
Harold Erbin, Sven Krippendorf
Publikováno v:
Physics Letters B, Vol 810, Iss , Pp 135798- (2020)
We initiate a way of generating effective field theories (EFT) models by the computer, satisfying both experimental and theoretical constraints. We use Generative Adversarial Networks (GAN) and display generated instances which go beyond the examples
Externí odkaz:
https://doaj.org/article/525f7d23b5ca44e998e7d073bb8d43d6
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 8, Pp 1-53 (2018)
Abstract We explore the possibility that (Bose-Einstein) condensation of scalar fields from string compactifications can lead to long-lived compact objects. Depending on the type of scalar fields we find different realisations of star-like and solito
Externí odkaz:
https://doaj.org/article/5f1f351b40ed4702bcc7c156769c60dc
Publikováno v:
Physics Letters B, Vol 779, Iss , Pp 348-352 (2018)
We argue that gravitational wave signals due to collisions of ultra-relativistic bubble walls may be common in string theory. This occurs due to a process of post-inflationary vacuum decay via quantum tunnelling. Though we study a specific string con
Externí odkaz:
https://doaj.org/article/161da6601e9d45928dd5fec57756c3ac
Autor:
Stefan Antusch, Francesco Cefalà, Sven Krippendorf, Francesco Muia, Stefano Orani, Fernando Quevedo
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 1, Pp 1-42 (2018)
Abstract A generic feature of string compactifications is the presence of many scalar fields, called moduli. Moduli are usually displaced from their post-inflationary minimum during inflation. Their relaxation to the minimum could lead to the product
Externí odkaz:
https://doaj.org/article/817d0199d4f54fcabcb84aa5fafcd5b8
Publikováno v:
Physics Letters B, Vol 737, Iss C, Pp 124-128 (2014)
Natural (axionic) inflation [1] can accommodate sizeable primordial tensor modes but suffers from the necessity of trans-Planckian variations of the inflaton field. This problem can be solved via the mechanism of aligned axions [2], where the aligned
Externí odkaz:
https://doaj.org/article/31da00cde460482baf4afe5c95f7af29
Autor:
Francesca Day, Sven Krippendorf
Publikováno v:
Galaxies, Vol 6, Iss 2, p 45 (2018)
X-ray telescopes are an exceptional tool for searching for new fundamental physics. In particular, X-ray observations have already placed world-leading bounds on the interaction between photons and axion-like particles (ALPs). ALPs are hypothetical n
Externí odkaz:
https://doaj.org/article/13a7ac396d4a43c5b047e5673c187148
Publikováno v:
Monthly notices of the Royal Astronomical Society, 2022, Vol.514(1), pp.329-341 [Peer Reviewed Journal]
In this work we revisit five different point sources within or behind galaxy clusters in order to constrain the coupling constant between axion-like particles (ALPs) and photons. We use three distinct machine learning (ML) techniques and compare our
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::101d52a1693ec613c14f258b7f0558ca
http://dro.dur.ac.uk/35976/
http://dro.dur.ac.uk/35976/
