# Generalised Garfinkle-Vachaspati Transform With Dilaton

## TL;DR

This paper extends the generalised Garfinkle-Vachaspati transform to include dilaton fields, enabling the addition of hair modes to D1-D5 solutions with richer field content, and explores applications to various supergravity systems.

## Contribution

We develop an extended GGV transform that incorporates the dilaton and apply it to generate new solutions in D1-D5 and F1-P systems.

## Key findings

- Extended GGV transform with dilaton successfully adds hair modes.
- Constructed travelling wave deformations on D1-D5-P geometries.
- Applied the technique to F1-P system solutions.

## Abstract

The generalised Garfinkle-Vachaspati transform (GGV) introduced in our previous work (arXiv:1808.04981) is a powerful technique to add hair modes to a class of known D1-D5 solutions. The richest and most interesting examples of D1-D5 geometries involve the dilaton and this calls for an extension of the procedure to accommodate for the presence of the dilaton field. In this paper we present such extended version of the GGV transform. We explore this generalisation in ten-dimensions with R-R or NS-NS 2-form field and relate the two set-ups via S-duality. In the context of the D1-D5 system, this generalisation allows us to add travelling wave deformations on solutions beyond minimal six-dimensional supergravity lifted to IIB supergravity. We work out travelling wave deformations involving the torus directions on a class of supersymmetric D1-D5-P geometries. We also explore applications of our technique to the F1-P system.