Single-photon detection with a Josephson junction coupled to a resonator

Abstract

We use semiclassical formalism to optimize a microwave single photon detector based on switching events of a current biased Josephson junction coupled to a resonator. In order to detect very rare events, the average time between dark counts ${\tau }_{\mathrm{dark}}$ should be maximized taking into account that the switching time ${\tau }_{\mathrm{sw}}$ should be sufficiently small. We demonstrate that these times can be tuned in the wide range by changing the junction parameters, and the ratios ${\tau }_{\mathrm{dark}}/{\tau }_{\mathrm{sw}}\sim 10^9$ can be achieved. Therefore, a junction-resonator arrangement can be used for detecting extremely low photon fluxes, for instance for searching galactic axions.

arXiv comment11 pages, 3 figures

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• Stepping closer to pulsed single microwave photon detectors for axions search
• Integrated and DC-powered superconducting microcomb
• Characterization of a Transmon Qubit in a 3D Cavity for Quantum Machine Learning and Photon Counting
• Photon-number resolution with microwave Josephson photomultipliers
• Josephson-based scheme for the detection of microwave photons
• Detector of microwave photon pairs based on a Josephson photomultiplier
• Stability of thermally bistable states and their switching in superconducting weak link
• Dispersive detection of single microwave photons with quantum dots
• Photonic heat transport from weak to strong coupling