21st Patras Workshop on Axions, WIMPs and WISPs

A Novel High Frequency Gravitational Wave Search Using Superconducting Coplanar Waveguide Resonators

Not scheduled

20m

University of Western Australia

Student/ECR Presentation

Speaker

Kosuke Nakamura (Kyoto University)

Description

We propose a novel high frequency gravitational wave search using superconducting coplanar waveguide resonators, targeting the kHz-MHz band motivated by several theoretical predictions such as primordial gravitational waves and gravitational waves produced by the superradiance of coherent bosonic fields around black holes.
The signature is periodic shifts in the resonator frequency caused by the gravitational wave through elastic strain modes of the chip, detected as phase modulation of the transmitted microwave tone. The projected strain sensitivity of a single CPW resonator is approximately 10^{-12}. A key advantage of this approach is its scalability and capability for broadband searches of stochastic, continuous, and burst gravitational wave signals.
In this talk, the detection principle and the ongoing R&D of the very first prototype are reported.