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1 results

  • 13 - Dimensional Reduction and T-Duality

  • from Part IV - Outlook
  • Thomas Mohaupt, University of Liverpool
  • Book:
    A Short Introduction to String Theory
    Published online:
    31 March 2022
    Print publication:
    07 April 2022, pp 155-214

  • Summary

    We use circle and orbicircle compactifications to illustrate generic features of string compactifications, including non-abelian gauge symmetry enhancement, Kac–Moody algebras and the Higgs effect. T-duality is introduced for both closed and open strings. Toroidal compactification are discussed in some detail, and two-tori are used as a proxi for Calabi–Yau compactifications and mirror symmetry. We discuss the vacuum selection problem and introduce the concepts of ‘landscape’ and ‘swampland’.