Anisotropic branes

TL;DR

This paper introduces anisotropic brane configurations exhibiting BKL oscillations near singularities, with near horizon limits resembling Kasner space in AdS, and explores anisotropic dynamics of probe branes in these backgrounds.

Contribution

It presents new anisotropic brane solutions with BKL oscillations and analyzes their near horizon Kasner limits and probe brane dynamics.

Findings

BKL oscillations occur near singularities in these brane solutions

Near horizon limits are Kasner spaces embedded in AdS backgrounds

Probe M5 branes can have three expanding directions while others contract

Abstract

We present a class of anisotropic brane configurations which shows BKL oscillations near their cosmological singularities. Near horizon limits of these solutions represent Kasner space embedded in AdS background. Dynamical probe branes in these geometries inherit anisotropies from the background. Amusingly, for a probe M5 brane, we find that there exists a parameter region where three of its world-volume directions expand while the rest contract.