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SUMMARY:Generalised Killing-Yano Symmetry and Supergravity Black Holes - T
 suyoshi Houri (DAMTP)
DTSTART:20130125T130000Z
DTEND:20130125T140000Z
UID:TALK42073@talks.cam.ac.uk
CONTACT:Dr Joan Camps
DESCRIPTION:Killing-Yano symmetry has played an important role in the stud
 y of black hole physics since it was found that in the Kerr spacetime it a
 llows separation of variables for the Hamilton-Jacobi\, Klein-Gordon and D
 irac equations. Due to the Killing-Yano symmetry\, higher-dimensional vacu
 um black hole solutions possess similar integrability structure to the Ker
 r black hole.\n\nIn this talk\, we discuss Killing-Yano symmetry of charge
 d\, rotating black hole solutions of the five-dimensional minimal supergra
 vity as well as abelian heterotic supergravity. We will see that it leads 
 us to introduce generalised Killing-Yano symmetry by considering skew-symm
 etric torsions which can be identified with matter fluxes in the theories.
  We also see that the generalised Killing-Yano symmetry shares almost iden
 tical properties with the standard one and implies the existence of import
 ant integrability structure for these black hole solutions. Moreover\, we 
 attempt to classify all metrics (which are not necessarily solutions of Ei
 nstein's equation) admitting generalised Killing-Yano symmetry\, which is 
 expected to provide an ansatz for exact solutions of various supergravity 
 theories.\n\nRefs. arXiv:1004.1032\, 1203.0393\, 1212.2163\nsee also arXiv
 :1104.0852
LOCATION:Pavilion B Potter Room (B1.19)
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