29 citations · 125 across the 7 of their papers we have counts for
7 papers
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…
On F-theory E_6 GUTs
Ching-Ming Chen, Yu-Chieh Chung
We approach the Minimum Supersymmetric Standard Model (MSSM) from an E_6 GUT by using the spectral cover construction and non-abelian gauge fluxes in F-theory. We start with an E_6…
On Global Flipped SU(5) GUTs in F-theory
Yu-Chieh Chung
We construct an SU(4) spectral divisor and its factorization of types (3,1) and (2,2) based on the construction proposed in [1]. We calculate the chiral spectra of flipped SU(5) GU…
Flipped SU(5) GUTs from E_8 Singularities in F-theory
Ching-Ming Chen, Yu-Chieh Chung
In this paper we construct supersymmetric flipped SU(5) GUTs from E_8 singularities in F-theory. We start from an SO(10) singularity unfolded from an E_8 singularity by using an SU…
Abelian Gauge Fluxes and Local Models in F-Theory
Yu-Chieh Chung
We analyze the Abelian gauge fluxes in local F-theory models with G_S=SU(6) and SO(10). For the case of G_S=SO(10), there is a no-go theorem which states that for an exotic-free sp…
Supersymmetry breaking, heterotic strings and fluxes
Katrin Becker, Chris Bertinato, Yu-Chieh Chung +1
In this paper we consider compactifications of heterotic strings in the presence of background flux. The background metric is a T^2 fibration over a K3 base times four-dimensional…