Non-trivial Tachyon Profiles in Low Energy Effective Theory

TL;DR

This paper explores classical solutions in a low energy string theory with tachyons, revealing new black hole and capped cylinder geometries, and discusses their implications for closed string tachyon condensation.

Contribution

It provides a comprehensive classification of solutions including black holes and capped cylinders within a weakly coupled, weakly curved regime.

Findings

Discovery of black hole solutions with tachyon backgrounds

Identification of solutions with capped cylinder geometries

Implications for closed string tachyon condensation processes

Abstract

We study classical solutions of a low energy effective theory of a string theory with tachyons. With a certain ansatz, we obtain all possible solutions which are weakly coupled and weakly curved. We find, in addition to the interpolating solutions studied in our previous paper, black hole solutions and solutions including the geometry of a capped cylinder. Some possible implications of the solutions to closed string tachyon condensation are discussed.