Towards a microwave single-photon counter for searching axions

Pankratov, A. L.Russian Academy of Sciences,Nizhny Novgorod State Technical University (författare)

The major task of detecting axions or axion-like particles has two challenges. On the one hand, the ultimate sensitivity is required, down to the energy of a single microwave photon of the yoctojoule range. On the other hand, since the detected events are supposed to be rare, the dark count rate of the detector must be extremely low. We show that this trade-off can be approached due to the peculiar switching dynamics of an underdamped Josephson junction in the phase diffusion regime. The detection of a few photons' energy at 10 GHz with dark count time above 10 s and the efficiency close to unity was demonstrated. Further enhancements require a detailed investigation of the junction switching dynamics.

Revin, L. S.Nizhny Novgorod State Technical University,Russian Academy of Sciences (författare)
Gordeeva, A. V.Nizhny Novgorod State Technical University,Russian Academy of Sciences (författare)
Yablokov, A. A.Nizhny Novgorod State Technical University,Russian Academy of Sciences (författare)
Kuzmin, Leonid,1946Nizhny Novgorod State Technical University,Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)kuzmin (författare)
Il'ichev, E.Leibniz-Institut Für Photonische Technologien E.V. (författare)
Russian Academy of SciencesNizhny Novgorod State Technical University (creator_code:org_t)

Ingår i:npj Quantum Information: Springer Science and Business Media LLC8:12056-6387

Av författaren/redakt...: Pankratov, A. L.; Revin, L. S.; Gordeeva, A. V.; Yablokov, A. A.; Kuzmin, Leonid, ...; Il'ichev, E.

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