14 citations · 49 across the 20 of their papers we have counts for
20 papers
The Altered Chaplygin Model as a Model for Dark Energy
Yi-Syuan Wu, Chuan-Jui Li, W. F. Kao
We present a scalar-field formulation of the generalized Chaplygin gas (GCG) and modified Chaplygin gas (MCG) models, in which the cosmic fluid dynamics are reproduced by canonical…
Anisotropic hyperbolic inflation for a model of two scalar and two vector fields
Tuan Q. Do, W. F. Kao
In this paper, we extend a recent proposed model of two scalar and two vector fields to a hyperbolic inflation scenario, in which the field space of two scalar fields is a hyperbol…
Anisotropic power-law inflation for a model of two scalar and two vector fields
Tuan Q. Do, W. F. Kao
Inspired by an interesting counterexample to the cosmic no-hair conjecture found in a supergravity-motivated model recently, we propose a multi-field extension, in which two scalar…
Inflaton in anisotropic higher derivative gravity
W. F. Kao
Existence and stability analysis of the Kantowski-Sachs type inflationary universe in a higher derivative scalar-tensor gravity theory is studied in details. Isotropic de Sitter ba…
Anisotropic induced gravity and inflationary universe
W. F. Kao
Existence and stability analysis of the Kantowski-Sachs type universe in a higher derivative induced gravity theory is studied in details. Existence of one stable mode and one unst…
Anisotropic higher derivative gravity and inflationary universe
W. F. Kao
Stability analysis of the Kantowski-Sachs type universe in pure higher derivative gravity theory is studied in details. The non-redundant generalized Friedmann equation of the syst…