"Bound on chaos, black holes and the entropy problem"

will be given by Dr. Mihailo Čubrović (Scientific Computing Laboratory, Center for the Study of Complex Systems, Institute of Physics Belgrade).

Abstract of the talk:

We will discuss the mechanisms of chaos and thermalization in Einstein gravity by looking at dynamics of strings in black hole geometries. The black hole horizon imprints to the scattering string the maximum possible Lyapunov exponent, proportional to the temperature and the spin of the string. This generalized bound on chaos can be realized also in absence of gravity, in strongly degenerate systems such as glasses. Finally, we will discuss the relation of the chaos bound to the stability of the wormhole geometries proposed recently as a solution of the black hole entropy loss problem.

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