Space-time dimensionality from brane collisions

TL;DR

This paper explores how collisions of higher-dimensional branes can produce lower-dimensional branes, including our universe, and discusses the formation of bound states and their implications for space-time dimensionality.

Contribution

It introduces a model of brane collision outcomes that accounts for the production of various brane dimensions and the formation of bound states, expanding understanding of brane cosmology.

Findings

Three-dimensional branes can emerge from higher-dimensional brane collisions.

Production of one-dimensional branes is suppressed but possible.

Bound states of branes can form without altering the primary results.

Abstract

Collisions and subsequent decays of higher dimensional branes leave behind three-dimensional branes and anti-branes, one of which could play the role of our universe. This process also leads to the production of one-dimensional branes and anti-branes, however their number is expected to be suppressed. Brane collisions may also lead to the formation of bound states of branes. Their existence does not alter this result, it just allows for the existence of one-dimensional branes captured within the three-dimensional ones.