activity
20172021
most citedHigher order derivative coupling to gravity and its cosmological implications

29 citations · 29 across the 2 of their papers we have counts for

collaborators

7 papers

astro-ph.HE2021

SN 2015bf: a fast declining type II supernova with flash-ionised signatures

Han Lin, Xiaofeng Wang, Jujia Zhang +19

We present optical and ultraviolet photometry, as well as optical spectra, for the type II supernova (SN) 2015bf. Our observations cover the phases from to d af…

gr-qc2020

Intermittent null energy condition violations during inflation and primordial gravitational waves

Yong Cai, Yun-Song Piao

Primordial null energy condition (NEC) violation would imprint a blue-tilted spectrum on gravitational wave background (GWB). However, its implications on the GWB might be far rich…

gr-qc2019

Trans-Planckian censorship of multistage inflation and dark energy

Hao-Hao Li, Gen Ye, Yong Cai +1

We explore the bound of the trans-Planckian censorship conjecture on an inflation model with multiple stages. We show that if the first inflationary stage is responsible for the pr…

gr-qc2019

Pre-inflation and Trans-Planckian Censorship

Yong Cai, Yun-Song Piao

We investigate the implication of Trans-Planckian Censorship Conjecture (TCC) for the initial state of primordial perturbations. It is possible to set the state of perturbation mod…

hep-th2018

Perturbative Reheating in Sneutrino-Higgs Cosmology

Yong Cai, Rehan Deen, Burt A. Ovrut +1

The theory of perturbative reheating in the Sneutrino-Higgs cosmology of the MSSM is presented. It is shown that following an epoch of inflation consistent with all Planck201…

gr-qc2018

The effective field theory approach of teleparallel gravity, gravity and beyond

Chunlong Li, Yong Cai, Yi-Fu Cai +1

We develop the effective field theory approach to torsional modified gravities, a formalism that allows for the systematic investigation of the background and perturbation levels s…