3 papers
quant-ph2025
A broadband single microwave-photon detector insensitive to the thermal noise
Y. Q. Chai, M. Y. Wang, S. N. Wang +2
Thermal noise is one of the physical obstacles that constrain the achievable detection sensitivities of various detectors. Indeed, as we showed in a recent paper (PRB 111, 024501 (…
quant-ph2025
Measuring weak microwave signals via current-biased Josephson Junctions II: Arriving at single-photon detection sensitivity
Y. Q. Chai, M. Y. Wang, S. N. Wang +2
It is well known that the current-biased Josephson junction (CBJJ) can serve as a Josephson threshold detector (JTD) for the sensitive detection of weak microwave signals. Based on…
physics.app-ph2025
Experimental demonstrations of Josephson threshold detectors for broadband microwave photons detection
Jia-Xing He, Ya-Qiang Chai, Peng-Hui Ouyang +2
Current-biased Josephson junctions (CBJJs) have been demonstrated as sensitive Josephson threshold detectors (JTDs) in the infrared range. In this letter, we show this kind of dete…