[institut] [phys4phys] Strings, Holography & Chaos Seminar May 13 12:00 CEST (IPB, 2nd floor theory seminar room): Yoav Zigdon

[Mihailo Čubrović]

Dear friends,

On May 13 (Wednesday) at 12:00 CEST we will have a seminar by Yoav 
Zigdon, in the theory seminar room (Institute of Physics Belgrade, 2nd 
floor). Yoav will be around for the whole week (Mon-Fri), so if you want 
to have a chat there will be plenty of time, drop me an email and I'll 
get you in touch. Title and abstract follow.

Bridging Worldsheet CFTs and Wormholes

Yoav Zigdon (School of Physics and Astronomy, Tel Aviv University)

I will review aspects of wormholes that were argued to capture quantum 
chaos and information preservation in black hole physics. Problematic 
issues with wormholes - the factorization problem and quantum coherence 
loss - will be reviewed as well. Then, I will provide several examples 
of two-dimensional conformal field theories on the worldsheet that 
describe string propagation in Euclidean wormholes, a traversable 
Lorentzian wormhole, and a double-cone wormhole target spacetimes. If 
time will permit, I will describe other examples of wormholes in the 
worldsheet formalism. The main lessons are that (a) classical string 
theory admits exact solutions of wormholes times internal CFTs and (b) 
wormholes for which the length scale of the throat is set by the string 
scale are incorporated.

-- 
Dr. Mihailo Čubrović

Center for the Study of Complex Systems
Institute of Physics Belgrade
National Institute of the Republic of Serbia
Pregrevica 118, 11080 Belgrade, Serbia
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