2000/02/01 by Mikhail S. Volkov, Volkov, Mikhail S.
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Particle physics theoretical and experimental studies #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/0002006
14 pages, LaTeX, Talk presented at the International Workshops ``Supersymmetry and Quantum Symmetries'' and ``Quantum Gravity and Strings'', Dubna 99
arxiv created 2000/02/01 · openalex publication_date 2000/02/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Type I string theory can be dimensionally reduced on group manifolds. The compactification on S3× S3 leads to the N=4 gauged SU(2)×SU(2) supergravity in four dimensions, which admits the BPS monopole type non-Abelian vacuum. The reduction on S3× AdS3 gives the Euclidean N=4 gauged SU(2)×SU(1,1) supergravity admitting a globally regular supersymmetric non-Abelian background. The latter can be analytically continued to the Lorentzian sector, which gives the regular, unstable particle-like configuration known as gravitational sphaleron. When lifted to D=10, the Euclidean vacuum describes a deformation of the D1--D5 brane system.