PNU-IBS workshop on Axion Physics : Search for axions

Axionic and Phonon Polaritons for Axion Dark Matter Detection (via Zoom)

6 Dec 2023, 17:15

45m

Paradise Hotel, 1F Banquet Room (Sicily) (Haeundae, Busan, South Korea)

Afternoon Session 4

Speaker

Dr Jan Schutte-Engel (UC Berkeley/Riken)

Description

Zoom link: https://pusan.zoom.us/j/86275799785pwd=EK6wqm0UJV8aZDqvvpmaE3UMHXsbVo.1
(ID : 862 7579 9785, Code secret: 335557)

In this talk I will describe how one can use collective effects in materials to detect axion dark matter (DM). I will first discuss topological magnetic insulators which can host axion quasiparticles (AQs). The AQs can resonantly mix with DM axions and photons leading to an enhanced DM signal in a photon detector. As a second example I discuss how one can utilize crystal lattice phonon excitations to search for axion DM. The DM signal calculation takes into account boundary effects and material losses. A central element in our calculation plays the effective refractive index, which in principle can be measured with transmission spectroscopy.

Presentation materials

Axionic_and_Phonon_Polaritons_for_Axion_Dark_Matter_Detection.pdf