Evidence of 1.5 THz single-photon detection in quantum capacitance detectors via telegraph rate distribution asymmetry
Brian J. Pepper, Charles Mathias Bradford, Theodore Reck +1 more
Quantum Capacitance Detectors (QCDs) are shot noise limited terahertz detectors. Radiation breaks Cooper pairs, causing quasiparticle poisoning of a charge qubit, read out by a microwave resonator. We find asymmetry in the distribution of telegraph transition rates, interpreted as resulting from discrete single-photon events.
International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)•Aug 1, 2015•0 citations