# Anisotropic hyperbolic inflation

@article{Chen2021AnisotropicHI, title={Anisotropic hyperbolic inflation}, author={Chong Chen and J. Soda}, journal={Journal of Cosmology and Astroparticle Physics}, year={2021}, volume={2021} }

Hyperbolic inflation is an extension of the slow-roll inflation in multi-field models. We extend hyperbolic inflation by adding a gauge field and find four-type attractor solutions: slow-roll inflation, hyperbolic inflation, anisotropic slow roll inflation, and anisotropic hyperbolic inflation. We perform the stability analysis with the dynamical system method. We also study the transition behaviors of solutions between anisotropic slow roll inflation and anisotropic hyperbolic inflation. Our…

## 3 Citations

Anisotropic hyperbolic inflation for a model of two scalar and two vector fields

- Physics
- 2021

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 hyperbolic space instead of…

Geometric Structure of Multi-Form-Field Isotropic Inflation and Primordial Fluctuations

- Physics
- 2022

An inflationary scenario is expected to be embedded into an ultraviolet (UV) complete theory such as string theory. Quasi-heavy fields are ubiquitous in UV complete theory. The effect of these heavy…

Cosmic no-hair conjecture and inflation with an SU(3) gauge field

- PhysicsPhysical Review D
- 2021

Pengyuan Gao, Kazufumi Takahashi, Asuka Ito, 4, 5 and Jiro Soda Department of Physics, Kobe University, Kobe 657-8501, Japan Center for Gravitational Physics, Yukawa Institute for Theoretical…

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