## Plane Wave Type II$^*$ String Backgrounds

### Abstract

In this note we aim to study plane-wave limits of the solutions of type II$^*$ superstring theories. We consider Freund-Rubin type $dS_5\times H^5$ solutions of type IIB$^*$ theory and obtain a new kind of plane-wave solutions, we refer them as de Sitter plane-waves or Dpp-waves. Considering Hull's time-like T-duality we are able to map the Dpp wave solution to maximally supersymmetric Hpp-wave in IIB string theory and vice-versa

Topics: Particle Physics - Theory
Year: 2004
OAI identifier: oai:cds.cern.ch:737128
Provided by: CERN Document Server