# T-Dual Cosmological Solutions of Double Field Theory II

## TL;DR

This paper explores cosmological solutions within Double Field Theory, demonstrating T-duality relations between supergravity and winding frames without complexifying the scale factor.

## Contribution

It presents explicit cosmological solutions in Double Field Theory that are related by T-duality, avoiding the need for complex scale factors.

## Key findings

- Solutions in supergravity and winding frames are explicitly constructed.
- T-duality relates these solutions without complexifying the scale factor.
- Provides a clearer understanding of T-duality in cosmological contexts.

## Abstract

In this paper we present cosmological solutions of Double Field Theory in the supergravity frame and in the winding frame which are related via T-duality. In particular, we show that the solutions can be viewed without the need of complexifying the cosmological scale factor.