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Effective Lagrangians for Superstring Compactifications

  • S. Ferrara
Part of the The Subnuclear Series book series (SUS, volume 26)

Abstract

In this lecture I will discuss some macroscopic (target space-time) properties versus microscopic (world-sheet) properties of four-dimensional superstrings.

The possible occurrence of an enhanced space-time supersymmetry (N = 2 or N=4) in certain internal conformal field theories (when used to “compactify” type II supertrings) allows us to obtain strong constraints on the effective (supergravity) Lagrangians. In particular the Kähler metric for the moduli of Calabi-Yau spaces (which correspond to deformation of the Kähler class) can be determined by symmetry and topological considerations, at least to each finite order in the α′ expansion.

The Kähler metric for the moduli which corresponds to deformation of the complex structure is also shown to be compatible with N=2 space-time supersymmetry.

These results imply that the full low-energy superstring Lagrangian for the massless modes can be computed from pure topological data on Calabi-Yau spaces.

Keywords

Modulus Space Vector Multiplet Heterotic String Untwisted Sector Quaternionic Manifold 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • S. Ferrara
    • 1
    • 2
  1. 1.CERNGenevaSwitzerland
  2. 2.University of CaliforniaLos AngelesUSA

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