Chennai Mathematical Institute

Seminars




2.00 pm, Lecture Hall 3
Renormalization group, secular term resummation and AdS (in)stability

Oleg Evnin
Chulalongkorn U. Bangkok.
28-10-14


Abstract

AdS space-time has been numerically observed to be (non-linearly) unstable with respect to large classes of initial perturbations of very small amplitudes. This behavior has been linked to the appearance of growing (secular) terms in non-linear perturbation theory around the AdS background, though the relation is far from obvious. I review the generalities pertaining to such secular terms, resummation strategies that endow perturbation theory with predictive power, and describe applications of these techniques to the AdS case.





Google
Search WWW Search cmi.ac.in