Browsing by Subject "Heterotic strings"

Now showing items 1-2 of 2

    • Article  

      Open problems in string cosmology 

      Toumbas, Nicolaos K. (2010)
      Some of the open problems in string cosmology are highlighted within the context of the recently constructed thermal and quantum superstring cosmological solutions. Emphasis is given on the high temperature cosmological ...
    • Article  

      Thermal and quantum superstring cosmologies 

      Catelin-Jullien, T.; Kounnas, Costas; Partouche, Hervé; Toumbas, Nicolaos K. (2008)
      We consider four dimensional heterotic string backgrounds for which supersymmetry is spontaneously broken via the Scherk-Schwarz mechanism on an internal spatial cycle and by finite temperature effects. We concentrate on ...