Auflistung nach Schlagwort "Superstring vacua"

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  • Nearly Kähler heterotic compactifications with fermion condensates 
    Chatzistavrakidis, Athanasios; Lechtenfeld, Olaf; Popov, Alexander D. (Heidelberg : Springer Verlag, 2012)
    We revisit AdS 4 heterotic compactifications on nearly Kähler manifolds in the presence of H-flux and certain fermion condensates. Unlike previous studies, we do not assume the vanishing of the supersymmetry variations. ...
  • On cosmological constants from α′-corrections 
    Gautason, Fridrik Freyr; Junghans, Daniel; Zagermann, Marco (Heidelberg : Springer Verlag, 2012)
    We examine to what extent perturbative α′-corrections can generate a small cosmological constant in warped string compactifications. Focusing on the heterotic string at lowest order in the string loop expansion, we show ...