A solid-state quantum communication receiver based on diamond nitrogen-vacancy color centers
CN117579177BActive Publication Date: 2026-06-19UNIV OF ELECTRONICS SCI & TECH OF CHINA
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF ELECTRONICS SCI & TECH OF CHINA
- Filing Date
- 2023-10-31
- Publication Date
- 2026-06-19
AI Technical Summary
Technical Problem
考虑到在空气中传播的交变电场和交变磁场的强度比为377:1，交变磁场远远弱于交变电场，因此大多数同类研究只着眼于金刚石氮空位色心的磁场探测研究，更没有公开文献和专利报道过其对电磁场相位信息的感知能力，使得无法应用于通信信号的探测
Benefits of technology
[0023]Benefit 1: By connecting the silver wires with a linewidth of micrometers to the toothed resonant units arranged in pairs, the strength of the magnetic field to be measured can be enhanced. The enhancement factor is related to the antenna parameters such as the specific operating frequency of the log-periodic antenna. Generally, the enhancement factor is 1,000 to 10,000 times. This solves the problem of reduced measurement sensitivity caused by the alternating magnetic field being only 1/377 of the alternating electric field in traditional measurements.
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Figure CN117579177B_ABST
Abstract
The application aims to provide a solid-state quantum communication receiver based on diamond nitrogen vacancy color center, and belongs to the technical field of quantum communication. The communication receiver realizes high-multiple amplification of a magnetic field signal by designing a logarithmic-periodic antenna, solves the problem of reduced measurement sensitivity caused by the fact that an alternating magnetic field is only 1 / 377 of an alternating electric field in traditional measurement, realizes simultaneous receiving of phase and field strength by means of mixing technology of the diamond nitrogen vacancy color center, realizes high-sensitivity receiving of an electric field signal by means of the characteristics that the electric field and the magnetic field coexist in space, and realizes inversion of the entire modulated signal based on the received signal.
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