Dielectric Haloscopes: A New Way to Detect Axion Dark Matter

Caldwell, Allen; Dvali, Gia; Majorovits, Bela; Millar, Alexander; Raffelt, Georg; Redondo, Javier; Reimann, Olaf; Simon, Frank und Steffen, Frank (2017): Dielectric Haloscopes: A New Way to Detect Axion Dark Matter. In: Physical Review Letters, Bd. 118, Nr. 9, 91801

Abstract

We propose a new strategy to search for dark matter axions in the mass range of 40-400 mu eV by introducing dielectric haloscopes, which consist of dielectric disks placed in a magnetic field. The changing dielectric media cause discontinuities in the axion-induced electric field, leading to the generation of propagating electromagnetic waves to satisfy the continuity requirements at the interfaces. Large-area disks with adjustable distances boost the microwave signal (10-100 GHz) to an observable level and allow one to scan over a broad axion mass range. A sensitivity to QCD axion models is conceivable with 80 disks of 1 m(2) area contained in a 10 T field.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 0031-9007
• Sprache: Englisch