| 发明名称 |
Generation and detection of frequency entangled photons |
| 摘要 |
An ultraviolet laser generates a coherent beam, which is downconverted to produce pairs of frequency-entangled photons. For each entangled pair, a first photon is sent along a first path and a second photon is sent along a second path. A first detector detects those photons sent along the first path, and a second detector detects those photons sent along the second path. The detection is performed in a single photon regime. Coincidence counting is performed on outputs of the detectors, including comparing leading edges on outputs of the first and second detectors within a time window. |
| 申请公布号 |
US9134422(B2) |
申请公布日期 |
2015.09.15 |
| 申请号 |
US200912418568 |
申请日期 |
2009.04.04 |
| 申请人 |
The Boeing Company |
发明人 |
Hunt Jeffrey H.;Capron Barbara A.;Parazzoli Claudio G. |
| 分类号 |
G01J1/42;G01S17/89;G01S7/486;G01S17/10 |
主分类号 |
G01J1/42 |
| 代理机构 |
|
代理人 |
Gortler Hugh P. |
| 主权项 |
1. A method comprising:
generating a coherent beam; downconverting the coherent beam to produce pairs of frequency-entangled photons; for each entangled pair, sending a first photon along a first path and a second photon along a second path; using a first detector to detect those photons sent along the first path and a second detector to detect those photons sent along the second path, the detection performed in a single photon regime; and performing coincidence counting on outputs of the detectors, including comparing leading edges on the outputs of the first and second detectors within a time window. |
| 地址 |
Chicago IL US |
