Zobrazeno 1 - 10
of 2 435
pro vyhledávání: '"P Vanhove"'
Two quantum theories which look different but are secretly describing the same low-energy physics are said to be dual to each other. When realized in the Topological Holography formalism, duality corresponds to changing the gapped boundary condition
Externí odkaz:
http://arxiv.org/abs/2409.06647
Autor:
Mougiakakos, Stavros, Vanhove, Pierre
The dynamics of the leading self-force (0SF) order, corresponding to the geodesic motion of a light body in the exact background of a heavy body, are explicitly derived for the first time using a flat space scattering amplitude-based approach. This i
Externí odkaz:
http://arxiv.org/abs/2407.09448
Autor:
Mougiakakos, Stavros, Vanhove, Pierre
We apply a formulation of Einstein's general relativity with only cubic interactions for deriving the metric of a Schwarzschild black hole to all orders in perturbation theory. This cubic interactions formulation coupled to effective worldline action
Externí odkaz:
http://arxiv.org/abs/2405.14421
Autor:
Brax, P., Vanhove, P.
We consider the single-parameter $\mathcal{R}+ c\mathcal{R}^2$ gravitational action and use constraints from astrophysics and the laboratory to derive a natural relation between the coefficient $c$ and the value of the cosmological constant. We find
Externí odkaz:
http://arxiv.org/abs/2405.08145
Autor:
de la Cruz, Leonardo, Vanhove, Pierre
We present an algorithm for determining the minimal order differential equations associated to a given Feynman integral in dimensional or analytic regularisation. The algorithm is an extension of the Griffiths-Dwork pole reduction adapted to the case
Externí odkaz:
http://arxiv.org/abs/2401.09908
We investigate cosmological correlators for conformally coupled $\phi^4$ theory in four-dimensional de Sitter space. These \textit{in-in} correlators differ from scattering amplitudes for massless particles in flat space due to the spacelike structur
Externí odkaz:
http://arxiv.org/abs/2312.13803
Autor:
Brax, Philippe, Vanhove, Pierre
We consider a scenario where the scalaron of $f({\cal R})$ models is related to the volume modulus of string compactifications leaving only one scalar degree of freedom at low energy. The coefficient of the leading curvature squared contribution to t
Externí odkaz:
http://arxiv.org/abs/2309.12087
Autor:
Stavros Mougiakakos, Pierre Vanhove
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-11 (2024)
Abstract The dynamics of the leading self-force (0SF) order, corresponding to the geodesic motion of a light body in the exact background of a heavy body, are explicitly derived for the first time using a flat space scattering amplitude-based approac
Externí odkaz:
https://doaj.org/article/322a42d5d5214a5293fc688ab7da8233
Autor:
Luna Maris, Menekse Göker, Jens M. Debacker, Kathia De Man, Bliede Van den Broeck, Jo Van Dorpe, Koen Van de Vijver, Vincent Keereman, Christian Vanhove
Publikováno v:
EJNMMI Physics, Vol 11, Iss 1, Pp 1-20 (2024)
Abstract Background As the spatial resolution of positron emission tomography (PET) scanners improves, understanding of radiotracer distributions in tissues at high resolutions is important. Hence, we propose a method for co-registration of high-reso
Externí odkaz:
https://doaj.org/article/8fa2db7c88c8429e82eb0d08e062142f
Autor:
Philipp Schwabl, Flavia Camponovo, Collette Clementson, Angela M. Early, Margaret Laws, David A. Forero-Peña, Oscar Noya, María Eugenia Grillet, Mathieu Vanhove, Frank Anthony, Kashana James, Narine Singh, Horace Cox, Reza Niles-Robin, Caroline O. Buckee, Daniel E. Neafsey
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-12 (2024)
Abstract The malaria parasites Plasmodium falciparum and Plasmodium vivax differ in key biological processes and associated clinical effects, but consequences on population-level transmission dynamics are difficult to predict. This co-endemic malaria
Externí odkaz:
https://doaj.org/article/374e121f769542ca8b5740762138ef58