Measurement based methods for accessing and characterizing quantum communication channels
US11949463B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2023 |
| Grant date | Apr 2, 2024 |
| Priority date | — |
| Expiry date | Jul 12, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Various embodiments of the present disclosure are directed to accessing a quantum communication channel undetected and/or characterizing this communication channel based upon attempted access. An example method includes accessing a quantum communication channel transmitting one or more qubits. The method includes the introduction of a noise signal to the quantum communication channel and then applying in its absence one or more weak or variable-strength measurements to the quantum communication channel. A strength of at least one measurement of the one or more measurements is based at least in part upon the current noise signal. The method further includes obtaining information associated with the one or more qubits based on the one or more measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.