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Exact Kerr-Schild (KS) solutions for electromagnetic excitations ofblack-holes, have the form of singular beams supported on twistor lines of theKS geometry. These beams have a very strong back-reaction on the metric andhorizon and create a fluctuating KS geometry occupying an intermediate positionbetween the classical and quantum gravities. We consider the Kerr theorem,which determines the twistor structure of the KS geometry and the correspondingholographic prequantum space-time adapted to subsequent quantum treatment.

Twistor-Beam Excitations of Black-Holes and Prequantum Kerr-Schild Geometry