Security systems and monitoring methods using quantum states
US7483142B2 · kind B2 · utility
12Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2006 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Apr 19, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A security system uses a source capable of producing an entangled state of a sensing mode and a reference mode. The sensing mode has a path that enters an area around an object being secured. A state measurement system in the security system can measure a combination of the sensing mode after traversal of the sensing path and the reference mode after traversal of a reference path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.