Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Sebastian Zell"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 11, Pp 1-34 (2024)
Abstract We show that the minimal Weyl-invariant Einstein-Cartan gravity in combination with the Standard Model of particle physics contains just one extra scalar degree of freedom (in addition to the graviton and the Standard Model fields) with the
Externí odkaz:
https://doaj.org/article/0d30e058d2154b3483b1657d70faf833
Autor:
Mikhail Shaposhnikov, Sebastian Zell
Publikováno v:
Physics Letters B, Vol 855, Iss , Pp 138804- (2024)
We propose a new class of single-field scalar quantum field theories with non-polynomial interactions leading to a two-point Green's function that can be naturally continued beyond the naive cutoff scale. This provides a new prospect for self-complet
Externí odkaz:
https://doaj.org/article/deae4655ae604f4cae95380671272b77
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 3, Pp 1-41 (2024)
Abstract We investigate inflation driven by the Higgs boson in the Palatini formulation of General Relativity. Our analysis primarily focuses on a small non-minimal coupling of the Higgs field to gravity in the range 0 < ξ ≲ 1. We incorporate the
Externí odkaz:
https://doaj.org/article/b1682322a2b34701ab5687cd835e578b
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 11, Pp 1-36 (2023)
Abstract We find the conditions under which scale-invariant Einstein-Cartan gravity with scalar matter fields leads to an approximate conformal invariance of the flat space particle theory up to energies of the order of the Planck mass. In the minima
Externí odkaz:
https://doaj.org/article/24e6faa30f0d4e2abe85e7ca79976307
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 6, Pp 1-21 (2022)
Abstract For inflation driven by the Higgs field coupled non-minimally to gravity, we study the cutoff energy scale above which perturbation theory breaks down. Employing the metric formulation, we first give an overview of known results and then pro
Externí odkaz:
https://doaj.org/article/207380d5ee284ddfa3e5c86e36375c1d
Publikováno v:
EPJ Quantum Technology, Vol 6, Iss 1, Pp 1-36 (2019)
Abstract We discuss a class of quantum theories which exhibit a sharply increased memory storage capacity due to emergent gapless degrees of freedom. Their realization, both theoretical and experimental, is of great interest. On the one hand, such sy
Externí odkaz:
https://doaj.org/article/54deb19674594278b9195293a9daea15
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 9, Pp 1-25 (2018)
Abstract In theories with long-range forces like QED or perturbative gravity, loop corrections lead to vanishing amplitudes. There are two well-known procedures to address these infrared divergences: dressing of asymptotic states and inclusion of sof
Externí odkaz:
https://doaj.org/article/88501aceea49401fb7a83796291c08a2
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 8, Pp 1-9 (2018)
Abstract In theories with long-range forces like QED or perturbative gravity, only rates that include emitted soft radiation are non-vanishing. Independently of detector resolution, finite observables can only be obtained after integrating over the I
Externí odkaz:
https://doaj.org/article/a91399cbeb614a84831597a9c2d2e1c8
Autor:
César Gómez, Sebastian Zell
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 4, Pp 1-18 (2018)
Abstract In a black hole, hair and quantum information retrieval are interrelated phenomena. The existence of any new form of hair necessarily implies the existence of features in the quantum-mechanically evaporated radiation. Therefore, classical su
Externí odkaz:
https://doaj.org/article/12be65b68ec64c5cb61cc7e58d2eb7ab
Autor:
Sebastian Zell, Claire Rigouzzo
Publikováno v:
Physical Review
General Relativity (GR) exists in different formulations. They are equivalent in pure gravity but generically lead to distinct predictions once matter is included. After a brief overview of various versions of GR, we focus on metric-affine gravity, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b7cb2fc1869978919007440ce596092
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