Tests of quantum information
US7359101B2 · kind B2 · utility
11Cited by
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20Claims
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Key dates
| Filing date | Sep 13, 2004 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Sep 27, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y10/00
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
Quantum testing can compare unknown photon states in a manner suitable for a validation check of a quantum digital signature, testing of the operation of a quantum gate, or detecting of entanglement. The effect of the QSC system can be used to entangle input photon states. QSC system can include a control swap gate having a control channel that is measured, a beam splitter and a controlled phases gate with a control channel that is measured, or a beam splitter with a parity detector on an output channel. The operation of the QSC system can also be used to generate an entangled photon state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.