Supergravity backgrounds and symmetry superalgebras

Ertem Ü.

TURKISH JOURNAL OF PHYSICS, cilt.40, sa.2, ss.113-126, 2016 (ESCI, Scopus, TRDizin) identifier identifier identifier

  • Yayın Türü: Makale / Derleme
  • Cilt numarası: 40 Sayı: 2
  • Basım Tarihi: 2016
  • Doi Numarası: 10.3906/fiz-1510-8
  • Dergi Adı: TURKISH JOURNAL OF PHYSICS
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.113-126
  • Ankara Üniversitesi Adresli: Hayır

Özet

We consider the bosonic sectors of supergravity theories in ten and eleven dimensions corresponding to the low energy limits of string theories and M-theory. The solutions of supergravity field equations are known as supergravity backgrounds and the number of preserved supersymmetries in those backgrounds are determined by Killing spinors. We provide some examples of supergravity backgrounds that preserve different fractions of supersymmetry. An important invariant for the characterization of supergravity backgrounds is their Killing superalgebras, which are constructed out of Killing vectors and Killing spinors of the background. After constructing Killing superalgebras of some special supergravity backgrounds, we discuss the possibilities of the extensions of these superalgebras to include the higher degree hidden symmetries of the background.