25–28 Sept 2018
DESY Hamburg
Europe/Berlin timezone

A Proposal to Detect Dark Matter Using Topological Insulators

26 Sept 2018, 15:30
20m
Seminar room 4a (SR 4a) (DESY Hamburg)

Seminar room 4a (SR 4a)

DESY Hamburg

Cosmology & Astroparticle Physics Parallel Session: Cosmo 1

Speaker

Dr David Marsh (University of Goettingen)

Description

Antiferromagnetically doped topological insulators (A-TI) are among the candidates to host dynamical axion fields and axion-polaritons; weakly interacting quasiparticles that are analogous to the dark axion, a long sought after candidate dark matter particle. Here we demonstrate that using the axion quasiparticle and antiferromagnetic fluctuations in A-TI's in conjunction with low-noise methods of detecting THz photons presents a viable route to detect axion dark matter with mass 0.7 to 3.5 meV, a range currently inaccessible to other dark matter detection experiments and proposals.

Primary author

Dr David Marsh (University of Goettingen)

Presentation materials