[astroseminar at Sapienza] 14/06/2017 at 16:00: Helvi Witek

[Elia Battistelli]

Title: Black holes as search engines for axion dark matter and hidden 
photons
Speaker:   Helvi Witek
Institute: University of Barcelona
Date: Wednesday, 14 June 2017
Time: 4:00pm
Location: Aula Conversi, Marconi Building, Dept. of Physics, Sapienza 
University

Abstract:
Observations of galaxy clusters, their rotation curves or
gravitational lensing indicate the existence of dark matter. Although
a precise understanding of its constituents and properties has
remained elusive, axion-like particles are among the most promising
dark matter candidates. Recently, it has been realized that black
holes can be employed to shed light on the dark matter quest through a
phenomenon known as superradiance.
In this talk I will give a review on black hole superradiance, how it
can be used to investigate light fundamental fields, and I will
present new results exploring their non-linear interaction.

web: https://agenda.infn.it/conferenceDisplay.py?confId=13309