18–19 May 2026
Koshiba Hall, The University of Tokyo
Asia/Tokyo timezone

Development of a Single Microwave Photon Detector Using a Superconducting Qubit for Axion Searches

18 May 2026, 17:20
5m
Koshiba Hall, The University of Tokyo

Koshiba Hall, The University of Tokyo

7-3-1 Hongo, Bunkyo-ku Tokyo

Speaker

Chikara Kawai (The University of Tokyo)

Description

Axions are a promising dark matter candidate, but the microwave signals expected from axion-photon conversion are extremely weak. To overcome the limitations of the standard quantum limit (SQL), single microwave photon detectors provide a promising approach for axion searches. We are developing a single microwave photon detector based on a superconducting transmon qubit for the detection of such weak microwave photons. This study aims to establish a highly sensitive quantum sensor and contribute to future quantum-enhanced searches for axion dark matter.

Author

Chikara Kawai (The University of Tokyo)

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