Abstract
Ekert's proposal for quantum cryptography states that, each photon of a quantum-mechanically entangled pairs is sent to the sender and receiver, who randomly measure the polarization in various bases. Using the polarization-entangled photon pairs from a novel spontaneous parametric down-conversion source, Ekert's proposal was experimentally implemented. Liquid crystals were used to randomly measure each photon in one of four bases. As a result, several eavesdropping strategies, including strong measurements of the polarization, and also 'quantum nondemolition' (QND) measurements, were clarified.
| Original language | English (US) |
|---|---|
| Pages | 225 |
| Number of pages | 1 |
| State | Published - 2000 |
| Externally published | Yes |
| Event | Quantum Electronics and Laser Science Conference (QELS 2000) - San Francisco, CA, USA Duration: May 7 2000 → May 12 2000 |
Other
| Other | Quantum Electronics and Laser Science Conference (QELS 2000) |
|---|---|
| City | San Francisco, CA, USA |
| Period | 5/7/00 → 5/12/00 |
ASJC Scopus subject areas
- General Physics and Astronomy
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