2020/03/31 by Federico Paolucci, Nadia Ligato, Vittorio Buccheri +3
Computer Science · Physics and Astronomy · #Cosmic microwave background #Detector #Galaxy #Josephson effect #Mechanical and Optical Resonators #Microwave #Modulation (music) #Photon #Quantum #Quantum Information and Cryptography #Superconducting and THz Device Technology #Superconductivity #cond-mat.mes-hall #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevapplied.14.034055
published as Phys. Rev. Applied 14, 034055 (2020) · 14 pages, 8 figures
openalex created_date 2020/03/23 · openalex publication_date 2020/09/21 · arxiv created 2020/09/22 · arxiv updated 2020/09/23 · openalex updated_date 2026/08/05
In astrophysics and particle physics, interest is shifting from the TeV scale toward \ensuremathμeV phenomena, such as the cosmic microwave background, galaxy formation, and the search for dark matter. To this end, superconducting detectors are employed. This study exploits modulation of the escape temperature via current to demonstrate a Josephson escape sensor (JES). The JES promises a stunning noise-equivalent power of 10^\ensuremath-25 W/Hz1/2, and the possibility to detect single photons down to 2 GHz in frequency. This device could also have strong implications in quantum technology, from subterahertz communication and quantum computing to cryptography and quantum key distribution.