25 citations · 43 across the 9 of their papers we have counts for
4 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…
Dynamical dark energy in the no-scale Brans-Dicke gravity
Muzi Hong, Kyohei Mukaida, Tsutomu T. Yanagida
We add a new scalar field in the no-scale Brans-Dicke gravity and require it to have a global O(2) symmetry with the original scalar field in the Brans-Dicke gravity. This gives us…
No-scale Brans-Dicke Gravity -- ultralight scalar boson & heavy inflaton
Muzi Hong, Kyohei Mukaida, Tsutomu T. Yanagida
It is very much intriguing if the Planck scale is not a fundamental parameter. The Brans-Dicke gravity is nothing but the theory where the Planck scale …