Abstract
We introduce the concept of encoding information on single photons using interference. and describe progress towards use of this in secure key sharing (quantum cryptography). Both one- and two-photon interference based quantum cryptography schemes are described. System performance is limited by the efficiency of single photon counting detectors at communications wavelengths. Finally we measure the intensity fluctuations of pulsed spontaneously emitted light and show that narrow band filters increase the measured second moment in line with thermal light.
| Original language | English |
|---|---|
| Title of host publication | LIGHT SCATTERING AND PHOTON CORRELATION SPECTROSCOPY |
| Editors | ER Pike, JB Abbiss |
| Place of Publication | DORDRECHT |
| Publisher | Springer |
| Pages | 247-262 |
| Number of pages | 16 |
| ISBN (Print) | 0-7923-4736-6 |
| Publication status | Published - 1997 |
| Event | NATO Advanced Research Workshop on Light Scattering and Photon Correlation Spectroscopy - KRAKOW, Poland Duration: 26 Aug 1996 → 30 Aug 1996 |
Workshop
| Workshop | NATO Advanced Research Workshop on Light Scattering and Photon Correlation Spectroscopy |
|---|---|
| Country/Territory | Poland |
| City | KRAKOW |
| Period | 26/08/96 → 30/08/96 |
Research Groups and Themes
- Photonics and Quantum