Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-06-25
JHEP 0407 (2004) 061
Physics
High Energy Physics
High Energy Physics - Theory
36 pages, JHEP class, minor errors corrected
Scientific paper
10.1088/1126-6708/2004/07/061
We deepen and refine the classification of supersymmetric solutions to N=2, D=4 gauged supergravity obtained in a previous paper. In the case where the Killing vector constructed from the Killing spinor is timelike, it is shown that the nonlinear partial differential equations determining the BPS solutions can be derived from a variational principle. The corresponding action enjoys a solution-generating PSL(2,R) symmetry. In certain subcases the system reduces to different known theories, like two-dimensional dilaton gravity or the dimensionally reduced gravitational Chern-Simons theory. We find new supersymmetric solutions including, among others, kinks that interpolate between two AdS_4 vacua, electrovac waves on anti-Nariai spacetimes, or generalized Robinson-Trautman solutions. In the case where the Killing vector is null, we obtain a complete classification. The one quarter and one half supersymmetric solutions are determined explicitely, and it is shown that the fraction of three quarters of supersymmetry cannot be preserved. Finally, the general lightlike configuration is uplifted to eleven-dimensional supergravity.
Cacciatori Sergio L.
Caldarelli Marco M.
Klemm Dietmar
Mansi Diego S.
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