Axions in Japan

Session

Parallel session - Experiments II

11 Nov 2025, 14:00

Lecture Hall (Kavli IPMU)

6. Toward remote sensing of backward reflection from stimulated axion decay

Kensuke Homma

11/11/2025, 14:00

We propose a method for remotely detecting backward reflection via induced decay of cold dark matter such as axion in the background of a propagating coherent photon field. This method can be particularly useful for probing concentrated dark matter streams by Earth’s gravitational lensing effect. Formulae for the stimulated reflection process and the expected sensitivities in local and remote...

7. A Way of Axion Detection with Mass 10^(−4)eV ∼ 10^(−3)eV using Cylinder with Low Electric Conductivity

Aiichi Iwazaki

11/11/2025, 14:20

A dark matter axion with mass ma induces an oscillating electric field in a cylindrical sample placed under a magnetic field B parallel to the cylinder axis. When the cylinder is made of a highly conductive material, the induced oscillating current primarily dissipates the axion energy at the surface. In contrast, if the cylinder is composed of a material with low conductivity, e.g. σ =...

8. Axion dark matter search using quantum sensing of magnons: Estimation of sensitivity for Kittel mode – superconducting qubit hybrid

Yaman Singh Shrestha

11/11/2025, 14:40

Axions can be probed through the interaction between axions and electron spins. By detecting magnons (quantum of collective spin excitation) induced by axions inside a ferromagnetic crystal such as YIG, we can explore the parameter space of axions in the GHz regime. To improve the sensitivity of axion detectors, we must (1) increase the signal (magnons) excited by axions and (2) suppress...