Zobrazeno 1 - 10
of 309
pro vyhledávání: '"Hersent"'
Autor:
Hersent, Kilian
Noncommutative geometry is a mathematical framework that expresses the structure of space-time in terms of operator algebras. By using the tools of quantum mechanics to describe the geometry, noncommutative space-times are expected to give rise to qu
Externí odkaz:
http://arxiv.org/abs/2407.02023
Autor:
Ehmke Ivan, Charpin Marie-Françoise, Girin Florent, Hersent Laurent, Odin Isabelle, Briane Magali
Publikováno v:
SHS Web of Conferences, Vol 133, p 02002 (2022)
Nous avons développé depuis plusieurs mois une expertise sur la prise en charge des soignants, grâce à un pôle de soin spécifique. Le modèle thérapeutique utilisé s’appuie sur les thérapies comportementales et cognitives et sur la thérap
Externí odkaz:
https://doaj.org/article/ad7218dbb770417ba853a85a8ca1b215
We define a quantum (noncommutative) analogue of locally trivial tangent bundle based on three main elements: the definition of local algebras through quotients of ideals of the global algebra as introduced in [20], the triviality of the local tangen
Externí odkaz:
http://arxiv.org/abs/2311.12584
Autor:
Hersent, Kilian
Publikováno v:
JHEP 2024 (2024) 23
We show that a UV divergence of the propagator integral implies the divergences of the UV/IR mixing in the two-point function at one-loop for a $\phi^4$-theory on a generic Lie algebra-type noncommutative space-time. The UV/IR mixing is defined as a
Externí odkaz:
http://arxiv.org/abs/2309.08917
Publikováno v:
JHEP 07 (2023) 031
We study one-loop perturbative properties of scalar field theories on the $\rho$-Minkowski space. The corresponding star-product, together with the involution are characterized from a combination of Weyl quantization and defining properties of the co
Externí odkaz:
http://arxiv.org/abs/2304.05787
Publikováno v:
Class. Quantum Grav. 40 (2023) 164001
We study quantum causal structures in $1+1$ $\kappa$-Minkowski space-time described by a Lorentzian Spectral Triple whose Dirac operator is built from a natural set of twisted derivations of the $\kappa$-Poincar\'e algebra. We show that the Lorentzia
Externí odkaz:
http://arxiv.org/abs/2302.10734
Autor:
Hersent, Kilian
In the 5-dimensional twisted $U(1)$-like gauge theory on $\kappa$-Minkowski, the one-loop one-point (tadpole) function was computed in arXiv:2107.14462. This article summarizes the construction of such a gauge theory and discusses the non-vanishing o
Externí odkaz:
http://arxiv.org/abs/2302.03998
Publikováno v:
Physics Reports 1014 (2023) 1-83
We review the present status of gauge theories built on various quantum space-times described by noncommutative space-times. The mathematical tools and notions underlying their construction are given. Different formulations of gauge theory models on
Externí odkaz:
http://arxiv.org/abs/2210.11890