Zobrazeno 1 - 10
of 41 708
pro vyhledávání: '"Extra Dimensions"'
Compact stars in the Kaluza-Klein space-time are investigated, with multiple additional compactified spatial dimensions ($d$). Within the extended phenomenological model, a static, spherically symmetric solution is considered, with the equation of st
Externí odkaz:
http://arxiv.org/abs/2410.10920
In Kaluza-Klein compactifications, some symmetries of the higher dimensional theory are preserved in lower dimensions, others are broken, and occasionally, there are symmetry enhancements. The symmetries that are enhanced by toroidal compactification
Externí odkaz:
http://arxiv.org/abs/2410.07325
A theoretical framework for calculating the mass-radius curve of compact stars in the Kaluza-Klein space-time is introduced, with one additional compact spatial dimension. Static, spherically symmetric solutions are considered, with the equation of s
Externí odkaz:
http://arxiv.org/abs/2408.16497
Publikováno v:
Gen Relativ Gravit 56, 110 (2024)
We consider dynamics of a scalar field in compactification scenario of Einstein-Gauss-Bonnet cosmology. It is shown that if the field is non-minimally coupled to curvature, its asymptotic value under certain conditions may be shifted from the minimum
Externí odkaz:
http://arxiv.org/abs/2407.20409
DUNE is a next-generation long-baseline neutrino oscillation experiment. It is expected to measure with an unprecedent precision the atmospheric oscillation parameters, including the CP-violating phase $\delta_{CP}$. Moreover, several studies have su
Externí odkaz:
http://arxiv.org/abs/2407.17247
Autor:
Kobayashi, Tatsuo, Otsuka, Hajime
We discuss non-invertible symmetries in toroidal compactifications of higher dimensional Yang-Mills theory with magnetic fluxes, which can be regarded as an effective action of type IIB string theory with magnetized D-branes. Specifically, we derive
Externí odkaz:
http://arxiv.org/abs/2408.13984
Autor:
Craig, Nathaniel, Kongsore, Marius
The extra-dimensional axion solves the strong CP problem while largely circumventing the quality problem that plagues its four-dimensional counterparts. Such high quality can be clearly understood in terms of the generalized global symmetries of the
Externí odkaz:
http://arxiv.org/abs/2408.10295
Publikováno v:
Phys. Rev. D 110, 064079 (2024)
Observational data of the Sagittarius A* (Sgr A*) shadow released by the Event Horizon Telescope (EHT) are used to investigate eventual deviations in the black hole shadow radius, aiming to seek physics beyond the Standard Model (SM) coming from extr
Externí odkaz:
http://arxiv.org/abs/2407.04609
Autor:
Hori, Takayuki
Complex particle is a kind of bilocal particle having unexpected symmetry, which was proposed by the authour. In the present paper, we show that critical dimension of the complex particle in Minkowski spacetime is $D = 4$, while $D = 2, 4$ or $6$ are
Externí odkaz:
http://arxiv.org/abs/2407.03378