78 citations · 276 across the 16 of their papers we have counts for
9 papers · 1 filter
Revisiting unitarity of single scalar field with non-minimal coupling
Minxi He, Muzi Hong, Kyohei Mukaida +1
We have investigated the unitarity violation scale of a non-minimally coupled scalar field with quartic self-coupling. This model is widely studied in the literature but the estima…
Torsion induced current-scalaron coupling in Einstein-Cartan gravity
Minxi He, Muzi Hong, Kyohei Mukaida
We investigate the matter current couplings with the scalar degrees of freedom originated from the torsion in Einstein-Cartan (EC) gravity. It has been shown in previous studies th…
Thermalization and hotspot formation around small primordial black holes
Minxi He, Kazunori Kohri, Kyohei Mukaida +1
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 t…
Geometry and unitarity of scalar fields coupled to gravity
Minxi He, Kohei Kamada, Kyohei Mukaida
We formulate scalar field theories coupled non-conformally to gravity in a manifestly frame-independent fashion. Physical quantities such as the matrix should be invariant unde…
Quantum Corrections to Higgs Inflation in Einstein-Cartan Gravity
Minxi He, Kohei Kamada, Kyohei Mukaida
This paper studies the quantum corrections to the Higgs inflation model in the context of the Einstein-Cartan (E-C) gravity in the large- limit with being the number of re…
Formation of hot spots around small primordial black holes
Minxi He, Kazunori Kohri, Kyohei Mukaida +1
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 therm…