Consistent truncation with dilatino condensation on nearly K\"ahler and Calabi-Yau manifolds

TL;DR

This paper develops a universal four-scalar truncation of ten-dimensional IIA supergravity on nearly K"ahler and Calabi-Yau manifolds, incorporating dilatino condensates, and explores solutions with various four-dimensional spacetime geometries.

Contribution

It introduces a new consistent truncation that is independent of specific manifold details and includes dilatino condensates, bridging nearly K"ahler and Calabi-Yau compactifications.

Findings

Universal four-scalar truncation constructed

Includes dilatino condensates in the theory

Supports solutions with different 4D spacetime geometries

Abstract

We construct a consistent four-scalar truncation of ten-dimensional IIA supergravity on nearly K\"ahler spaces in the presence of dilatino condensates. The truncation is universal, i.e. it does not depend on any detailed features of the compactification manifold other than its nearly K\"ahler property, and admits a smooth limit to a universal four-scalar consistent truncation on Calabi-Yau spaces. The theory admits formal solutions with nonvanishing condensates, of the form $S^{1,3}\times M_6$, where $M_6$ is a six-dimensional nearly K\"ahler or Calabi-Yau manifold, and $S^{1,3}$ can be de Sitter, Minkowski or anti-de Sitter four-dimensional space.