Zobrazeno 1 - 10
of 157
pro vyhledávání: '"Isono, Hiroshi"'
Autor:
Anchordoqui, Luis A., Antoniadis, Ignatios, Bielli, Daniele, Chatrabhuti, Auttakit, Isono, Hiroshi
The proposal of a rapid sign-switching cosmological constant in the late universe, mirroring a transition from anti-de Sitter (AdS) to de Sitter (dS) space, has significantly improved the fit to observational data and provides a compelling framework
Externí odkaz:
http://arxiv.org/abs/2410.18649
We study the problem of false vacuum decay in arbitrary dimensions, in the presence of gravity, and compute the transition probability within the thin-wall approximation, generalising the results of Coleman and de Luccia. In the particular case of on
Externí odkaz:
http://arxiv.org/abs/2405.16920
We extend a recently proposed framework, dubbed inflation by supersymmetry breaking, to hybrid inflation by introducing a waterfall field that allows to decouple the supersymmetry breaking scale in the observable sector from the inflation scale, whil
Externí odkaz:
http://arxiv.org/abs/2404.05269
Publikováno v:
Eur. Phys. J. C 83, 474 (2023)
We study in more detail the cubic constraints for N=1 chiral superfields proposed in the earlier work Eur. Phys. J. C 81, 523 (2021), which describe low-energy goldstino-axion dynamics in global non-linearly realized supersymmetry. We generalize the
Externí odkaz:
http://arxiv.org/abs/2304.04020
Publikováno v:
In Microelectronics Reliability October 2024 161
Publikováno v:
Eur. Phys. J. C 82, 84 (2022)
We study real fifth-order superfield constraint for ${\cal N}=2$ vector (and tensor) multiplet and derive most general solution describing complete supersymmetry breaking, and preserving a real scalar, two goldstini, and an abelian gauge field as low
Externí odkaz:
http://arxiv.org/abs/2111.02205
Publikováno v:
Eur. Phys. J. C 81, 1078 (2021)
We study reheating after the end of inflation in models where the inflaton is the superpartner of goldstino and is charged under a gauged $U(1)$ R-symmetry. We consider two classes of models -- one is small field characterized by an almost flat K\"ah
Externí odkaz:
http://arxiv.org/abs/2110.01347
Publikováno v:
Eur.Phys.J.C 81 (2021) 6, 523
We find new solutions to real cubic constraints on $N=1$ chiral superfields transforming under global abelian symmetries. These solutions describe the low-energy dynamics of a goldstino interacting with an axion (both belonging to the same chiral sup
Externí odkaz:
http://arxiv.org/abs/2103.11217
We study wavefunctions of heavy scalars on de Sitter spacetime and their implications to dS/CFT correspondence. In contrast to light fields in the complementary series, heavy fields in the principal series oscillate outside the cosmological horizon.
Externí odkaz:
http://arxiv.org/abs/2011.09479
Publikováno v:
Eur. Phys. J. C, 81 (2021) 2, 166
We construct new models of inflation and spontaneous supersymmetry breaking in de Sitter vacuum, with a single chiral superfield, where inflaton is the superpartner of the goldstino. Our approach is based on hyperbolic K\"ahler geometry, and a gauged
Externí odkaz:
http://arxiv.org/abs/2009.02203