de Sitter space, (D)pp-Waves and a star-Matrix model

TL;DR

This paper explores de Sitter and plane-wave solutions in M* theory and attempts to formulate a matrix model, revealing issues with negative energy terms in the model.

Contribution

It introduces a matrix model for de Sitter and plane-wave solutions in M* theory, highlighting the presence of negative energy terms.

Findings

Matrix model with negative energy mass terms

Negative energy kinetic terms for matrix fields

Insights into de Sitter solutions in M* theory

Abstract

We consider de Sitter spacetime solutions and the corresponding de Sitter kind of plane-wave solutions in M* theory. We attempt to write down corresponsing matrix model which is found to have explicit negative energy mass terms as well as negative energy kinetic terms for the matrix fields.