Non-local superconducting single-photon detector
arXiv:2303.13928 · doi:10.1103/PhysRevApplied.20.014003
Abstract
We present and theoretically analyse the performance of an innovative non-local superconducting single-photon detector. The device operates thanks to the energy-to-phase conversion mechanism, where the energy of the absorbed single-photon is transformed in a variation of the superconducting phase. To this scope, the detector is designed in the form of a double-loop superconductor/normal metal/superconductors (SNS) Josephson interferometer, where the detection occurs in a long SNS junction and the read-out is operated by a short SNS junction. The variation of the superconducting phase across the read-out junction is measured by recording the quasiparticle current flowing through a tunnel coupled superconducting probe. By exploiting realistic geometry and materials, the detector is able to reveal single-photons of frequency down to 10 GHz when operated at 10 mK. Furthermore, the device provides value of signal-to-noise ratio up 10^4 in the range 10 GHz-10 THz by selecting the magnetic flux and the bias voltage. This device can find direct applications as single-photon detector in both basic science and quantum technology, while the energy-to-phase conversion mechanism can be at the basis of non-local read-out and memory architectures for superconducting qubits.
arXiv comment10 pages, 6 figures
References in corpus (25)
- Quantum Cryptography
- Optical Quantum Computing
- Opportunities for mesoscopics in thermometry and refrigeration: Physics and applications
- Superconducting nanowire single-photon detectors: physics and applications
- Superconducting Nanowire Single-Photon Detectors for Quantum Information
- Phase controlled superconducting proximity effect probed by tunneling spectroscopy
- Fluctuations in the electron system of a superconductor exposed to a photon flux
- SQUIPT - Superconducting Quantum Interference Proximity Transistor
- Supercurrent-carrying density of states in diffusive mesoscopic Josephson weak links
- Ultrasensitive Proximity Josephson Sensor with Kinetic Inductance Read-Out
- Thermoelectric radiation detector based on superconductor/ferromagnet systems
- Nanobolometer with Ultralow Noise Equivalent Power
- Supercurrent in a mesoscopic proximity wire
- Josephson-Threshold Calorimeter
- Hybrid superconducting quantum magnetometer
- Phase-Dependent Electronic Specific Heat in Mesoscopic Josephson Junctions
- Preliminary demonstration of a persistent Josephson phase-slip memory cell with topological protection
- Development of highly sensitive nanoscale transition edge sensors for gigahertz astronomy and dark matter search
- Josephson photodetectors via temperature-to-phase conversion
- Spectral characteristics of a fully-superconducting SQUIPT
- Proximity SQUID single photon detector via temperature-to-voltage conversion
- A highly-sensitive broadband superconducting thermoelectric single-photon detector
- Hypersensitive tunable Josephson escape sensor for gigahertz astronomy
- Influence of interface transmissivity and inelastic scattering on the electronic entropy and specific heat of diffusive SNS Josephson junctions
- Inductive Superconducting Quantum Interference Proximity Transistor: the L-SQUIPT