Jun 14 – 16, 2023
AlbaNova Main Building
Europe/Stockholm timezone

Hunting axions with metamaterials: the ALPHA haloscope

Jun 16, 2023, 1:45 PM
15m
Oskar Klein Auditorium FR4 (AlbaNova Main Building)

Oskar Klein Auditorium FR4

AlbaNova Main Building

Roslagstullsbacken 21, 114 21 Stockholm
Speaker in ELPA session Sektionen för elementarpartikel och astropartikelfysik Sektionen för elementarpartikel och astropartikelfysik

Speaker

Andrea Gallo Rosso (Stockholm University)

Description

Among the theoretical particles that could explain dark matter, axions make an ideal candidate. They can be produced in the early Universe and make up the observed abundances, permeating the universe as an invisible wave. In recent years, the efforts to build a kind of radio that would tune to this unique frequency has intensified, with conventional techniques failing to look for high frequencies. By arranging materials macroscopically in a clever fashion (so called metamaterials) to engineer a custom plasma, the Axion Longitudinal Plasma Haloscope (ALPHA) will allow for some of the best motivated and most difficult frequencies to be scanned, potentially revealing the nature of dark matter. The talk reviews the theory behind this new concept as well as providing an overview of potential search strategies.

Primary author

Andrea Gallo Rosso (Stockholm University)

Presentation materials