New Anisotropic Exact Solution in Multifield Cosmology

In the case of two-scalar field cosmology, and specifically for the Chiral model, we determine an exact solution for the field equations with an anisotropic background space. The exact solution can describe anisotropic inflation with a Kantowski-Sachs geometry and can be seen as the anisotropic analogue of the hyperbolic inflation. Finally, we investigate the stability conditions for the exact solution.

Automated summary

In the case of two-scalar field cosmology, an exact solution for the field equations with an anisotropic background space is determined. The solution describes anisotropic inflation with a Kantowski-Sachs geometry, acting as the anisotropic analogue of hyperbolic inflation. Finally, stability conditions for the exact solution are investigated.