Single-Photon Detection with a Josephson Junction Coupled to a Resonator

Dmitry S. Golubev; Evgeni V. Il’ichev; Leonid S. Kuzmin

doi:10.1103/PhysRevApplied.16.014025

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Single-Photon Detection with a Josephson Junction Coupled to a Resonator

Dmitry S. Golubev, Evgeni V. Il’ichev, Leonid S. Kuzmin

DOI 10.1103/PhysRevApplied.16.014025 · Physical Review Applied

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Abstract

We use a semiclassical formalism to optimize a microwave single-photon detector based on switching events of a current-biased Josephson junction coupled to a resonator. To detect very rare events, the average time between dark counts τdark should be maximized taking into account that the switching time τsw should be sufficiently small. We demonstrate that these times can be tuned in a wide range by changing the junction parameters, and τdark/τsw∼109 can be achieved. Therefore, a junction-resonator arrangement can be used to detect extremely low photon fluxes (e.g., for searching for galactic axions).

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	0.09	Pressure not reported	unknown