Topic: Search for dark matter axion with Rydberg atoms
Speaker: Prof. Atsushi Tokiyasu
Date: March 25, 2021 (Thursday)
Time: 4:00 PM
Venue: Online Seminar (Zoom Teleconference System)
Meeting ID: 610 806 8959
Axion is a hypothetical particle, originally proposed to solve the Strong CP problem in the QCD theory. Axion is believed to be generated in the early universe, and it is known to be one of the candidates of cosmic dark matter.
Many search experiments were performed, but the existence of axion has not been established yet.
From the recent observation on the cosmic microwave and the theoretical calculation, it is suggested that the
axion has a mass of O(100) micro-eV. We are aiming to search for axion in this mass region (New-CARRACK
In the New-CARRACK project, we are planning to search for axion by using a single photon detection method.
Single photon detection is free from the standard quantum limit, and allows us to search for axion with a wide
range of mass without degrading its detection sensitivity.