Zobrazeno 1 - 10
of 32
pro vyhledávání: '"He, Minxi"'
Primordial black holes (PBHs) from the early Universe that can contribute to dark matter (DM) abundance have been linked to gravitational wave observations. Super-massive black holes (SMBHs) at the centers of galaxies are expected to modify distribut
Externí odkaz:
http://arxiv.org/abs/2410.02591
We quantitatively analyze a basic question: what is the stationary solution of the background plasma temperature profile around a black hole (BH)? One may naively expect that the temperature profile continuously decreases from the Hawking temperature
Externí odkaz:
http://arxiv.org/abs/2407.15926
We show that a pseudo-Nambu-Goldstone boson (pNGB) with an initial misalignment angle can drive successful spontaneous baryogenesis, and become a good dark matter candidate if the corresponding global symmetry is non-restored at high temperatures. Co
Externí odkaz:
http://arxiv.org/abs/2406.04180
Publikováno v:
JCAP 05 (2024) 107
We show that various types of scalaron-induced inflation, including the Starobinsky inflation, can be realized in the Einstein-Cartan gravity with the Nieh-Yan term and/or the Holst term. Einstein-Cartan $f(R)$ theory is known not to induce an additi
Externí odkaz:
http://arxiv.org/abs/2402.05358
We formulate scalar field theories coupled non-conformally to gravity in a manifestly frame-independent fashion. Physical quantities such as the $S$ matrix should be invariant under field redefinitions, and hence can be represented by the geometry of
Externí odkaz:
http://arxiv.org/abs/2308.15420
This paper studies the quantum corrections to the Higgs inflation model in the context of the Einstein-Cartan (E-C) gravity in the large-$ N $ limit with $N$ being the number of real scalar components in Higgs. Recently, it is realized that the Higgs
Externí odkaz:
http://arxiv.org/abs/2308.14398
In this paper, we investigate the thermalization of Hawking radiation from primordial black holes (PBHs) in the early Universe, taking into account the interference effect on thermalization of high energy particles, known as Landau-Pomeranchuk-Migdal
Externí odkaz:
http://arxiv.org/abs/2210.06238
Publikováno v:
JCAP05(2023)047
We propose an extension of the Higgs inflation to the hybrid metric-Palatini gravity, where we introduce non-minimal couplings between Higgs and both the metric-type and the Palatini-type Ricci scalars. We study the inflationary phenomenology of our
Externí odkaz:
http://arxiv.org/abs/2209.11051
Autor:
He, Minxi
Publikováno v:
JCAP 05 (2021) 021
The preheating process in the mixed Higgs-$ R^2 $ model has been investigated in depth recently, but the analysis of perturbative reheating is still missing. In this paper, we discuss the effect of perturbative decay during (p)reheating in this model
Externí odkaz:
http://arxiv.org/abs/2010.11717
It has recently been suggested that at the post-inflationary stage of the mixed Higgs-$R^2$ model of inflation efficient particle production can arise from the tachyonic instability of the Higgs field. It might complete the preheating of the Universe
Externí odkaz:
http://arxiv.org/abs/2007.10369