25 citations · 43 across the 9 of their papers we have counts for
9 papers
Interacting Dark Energy and Dark Matter in O(3) No-Scale Gravity
Lincoln da S. Pereira, Muzi Hong, Elisa G. M. Ferreira +1
Dark Energy (DE) and Dark Matter (DM) are among the greatest mysteries in particle physics and cosmology, since their origins remain unclear. It is intriguing to consider whether b…
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…
Cancellation of loop corrections to soft scalar power spectrum
Yohei Ema, Muzi Hong, Ryusuke Jinno +1
We prove the absence of scale-invariant one-loop corrections to the superhorizon curvature perturbations from small-scale (potentially enhanced) scalar perturbations in a general i…
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…
Cancellation of one-loop correction to soft tensor power spectrum
Yohei Ema, Muzi Hong, Ryusuke Jinno +1
We demonstrate that there are no scale-invariant one-loop corrections to the superhorizon tensor perturbations from small-scale (potentially enhanced) scalar perturbations, irrespe…
Increase of in regularized pole inflation & Einstein-Cartan gravity
Minxi He, Muzi Hong, Kyohei Mukaida
We show that the regularization of the second order pole in the pole inflation can induce the increase of , which may be important after the latest data release of cosmic micr…
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 …
Starobinsky Inflation and beyond in Einstein-Cartan Gravity
Minxi He, Muzi Hong, Kyohei Mukaida
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 Hols…