21 February - 21 February
"High-Energy Behavior of Scattering Amplitudes in Theories with Purely Virtual Particles" by Dr. Marco Piva, University of Warsaw
Starts at 18:00
We are pleased to announce that the next LOCAL ITMP seminar will be held on Wednesday, Mar 2, at 18:00 (Moscow time). It will be arranged in person in ITMP with the possibility to participate via zoom.
Speaker: Dr. Andrei O. Barvinsky, Lebedev Institute, ITMP
Title: Horava gravity as palladium of locality, unitarity and renormalizability: methods and results
Abstract: We discuss problems of covariant renormalization of Lorentz non-invariant Horava gravity models. Projectable version of these models in generic spacetime dimensions is shown to maintain UV renormalizability, locality and unitarity, which is based on the BRST structure of renormalization in a special class of regular background covariant gauges. Renormalization group flow with the asymptotically free UV fixed point is presented in (2+1)-dimensional theory. Beta functions of (3+1)-dimensional theory are obtained by the combination of dimensional reduction and the method of universal functional traces. They feature fixed points with several candidates for asymptotic freedom and also suggest an intriguing connection between the (3+1)-dimensional Horava gravity with detailed balance and gravitational Chern-Simons/topological massive gravity.
If you want to join the seminar please register here before 16:00, March 2.
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