The 104th KARC Colloquium
The 104th KARC Colloquium was ended. Thank you for the participation.
| Date&Time | Wednesday, March 24 , 2010 13:30-14:30 |
| Place | Conference Room, 2F, Research Building 1,Kobe Advanced ICT Research Center |
| Lecturer | “Photon detection and weak coherent state discrimination technologies” |
| Speaker | Dr. Kenji TSUJINO JST ERATO-SORST Quantum Computation and Information Project |
| Abstract | I will talk about my resent research results. First topic is demonstration of photon detection based on a sub-Geiger mode InGaAs avalanche photodiode (InGaAs APD). In this mode, it is possible to detect photons in free-running mode. In contrast, the conventional operation mode (gated mode) of InGaAs APDs requires prior timing information for detecting photons. The second topic is demonstration of near-optimal displacement receivers for discriminating coherent states. This receiver performance surpasses the shot-noise limit that is signal-discrimination limit for on-off keyed signals by using photon counting. |
| Language | Japanese |
| Admission | Free |
| Organizer | Kazuhiro HAYASAKA Senior Researcher, Quantum ICT group, NICT |