639 citations · 2.5k across the 51 of their papers we have counts for
10 papers · 1 filter
Cosmic Superstrings Revisited in Light of NANOGrav 15-Year Data
John Ellis, Marek Lewicki, Chunshan Lin +1
We analyze cosmic superstring models in light of NANOGrav 15-year pulsar timing data. A good fit is found for a string tension and a string intercommu…
Inflationary epoch in the presence of holographic dark energy
Paola C. M. Delgado, Alexander Ganz, Chunshan Lin
We analyze the effects of the holographic dark energy model in a single field slow-roll inflation, taking into account both the holographic and the dark radiation components. In pa…
CMB Scale Dependent Non-Gaussianity from Massive Gravity during Inflation
Guillem Domènech, Takashi Hiramatsu, Chunshan Lin +3
We consider a cosmological model in which the tensor mode becomes massive during inflation, and study the Cosmic Microwave Background (CMB) temperature and polarization bispectra a…
Inflationary Magnetogenesis with Broken Local U(1) Symmetry
Guillem Domènech, Chunshan Lin, Misao Sasaki
We point out that a successful inflationary magnetogenesis could be realised if we break the local U(1) gauge symmetry during inflation. The effective electric charge is fixed as a…
Resonant Primordial Gravitational Waves Amplification
Chunshan Lin, Misao Sasaki
We propose a mechanism to evade the Lyth bound in models of inflation. We minimally extend the conventional single-field inflation model in general relativity (GR) to a theory with…
Topological Inflation with Large Tensor-to-scalar Ratio
Yu-Chieh Chung, Chunshan Lin
BICEP2's detection on the primordial B-mode of CMB polarization suggests that inflation occurred around GUT scale, with the tensor-to-scalar ratio r~0.2. Inspired by this discosver…
Scale dependences of local form non-Gaussianity parameters from a DBI isocurvature field
Qing-Guo Huang, Chunshan Lin
We derive the spectral indices and their runnings of local form and from a DBI isocurvature field and we find that the indices are suppressed by the sound speed $…
Quadra-Spectrum and Quint-Spectrum from Inflation and Curvaton Models
Chunshan Lin, Yi Wang
We calculate the quadra-spectrum and quint-spectrum, corresponding to five and six point correlation functions of the curvature perturbation. For single field inflation with standa…
Non-Gaussianity from false vacuum inflation: Old curvaton scenario
Jinn-Ouk Gong, Chunshan Lin, Yi Wang
We calculate the three-point correlation function of the comoving curvature perturbation generated during an inflationary epoch driven by false vacuum energy. We get a novel false…
Primordial Non-Gaussianities from the Trispectra in Multiple Field Inflationary Models
Xian Gao, Miao Li, Chunshan Lin
We investigate the primordial non-Gaussianities from the trispectra in multi-field inflation models, which can be seen as generalization of multi-field -inflation and multi-DBI…