Loading Events

« All Events

  • This event has passed.

Quasinormal modes and Ruelle resonances: mathematician’s perspective

February 9, 2023 @ 1:30 pm - 2:30 pm

CMSA GR Seminar 02.09.23

General Relativity Seminar

Speaker: Maciej Zworski, UC Berkeley

Title: Quasinormal modes and Ruelle resonances: mathematician’s perspective

Abstract: Quasinormal modes of gravitational waves and Ruelle resonances in hyperbolic classical dynamics share many general properties and can be considered “scattering resonances”: they appear in expansions of correlations, as poles of Green functions and are associated to trapping of trajectories (and are both notoriously hard to observe in nature, unlike, say, quantum resonances in chemistry or scattering poles in acoustical scattering). I will present a mathematical perspective that also includes zeros of the Riemann zeta function (scattering resonances for the Hamiltonian given by the Laplacian on the modular surface) and stresses the importance of different kinds of trapping phenomena, resulting, for instance, in fractal counting laws for resonances.


February 9, 2023
1:30 pm - 2:30 pm
Event Category:


CMSA Room G10
CMSA, 20 Garden Street
Cambridge, MA 02138 United States
+ Google Map