Journal article

### Experimental Free-Space Distribution of Entangled Photon Pairs over a Noisy Ground Atmosphere of 13km

Abstract:

We report free-space distribution of entangled photon pairs over a noisy ground atmosphere of 13km. It is shown that the desired entanglement can still survive after the two entangled photons have passed through the noisy ground atmosphere. This is confirmed by observing a space-like separated violation of Bell inequality of $2.45 \pm 0.09$. On this basis, we exploit the distributed entangled photon source to demonstrate the BB84 quantum cryptography scheme. The distribution distance of entan...

### Authors

Journal:
Phy. Rev. Lett.
Volume:
94
Issue:
15
Pages:
150501
Publication date:
2004-12-31
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:39368332-271c-4d16-ac65-eeb75e0b7acc
Source identifiers:
198661
Local pid:
pubs:198661
Keywords: