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在两个量子位NV中心中,量子局部渔民和不确定性信息的不一致性
H Allhibi1, F Aljuaydi2, A-B A Mohamed3,4
1Department of Mathematical Sciences, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia.
Scientific reports
|October 2, 2025
概括
这项研究探讨了空 (NV) 中心的量子相关性,发现外部场和合会影响相关性强度. 增加的脱凝度会降低这些量子相关性,影响NV中心应用.
科学领域:
- 量子信息科学 量子信息科学
- 固态物理 固态物理
- 量子光学是一种量子光学.
背景情况:
- 钻石中的空 (NV) 中心是有希望的固态量子比特.
- 了解非连贯性对于在NV系统中保持量子相关性至关重要.
- 量子相关性,如竞争,局部量子不确定性 (LQU) 和局部量子费舍尔信息 (LQFI) 是关键指标.
研究的目的:
- 调查二量子比特NV系统中量子相关性动态上的脱凝效应.
- 分析各种物理参数对生成的量子相关性的影响.
- 确定内在不连贯性如何影响这些相关性的稳定性和生成.
主要方法:
- 对于两量子比特NV中心,使用了内在脱凝的模型.
- 模拟了零场分裂,磁场,电场和双极-双极合的效应.
- 使用LQU,LQFI和 concurrence. 的量化相关性.
主要成果:
- 通过对NV中心的特定参数选择,可以产生强烈的相关性.
- 在弱失一致的情况下,LQFI,LQU和竞争表现出同步振荡.
- 外部磁场和零场分裂削弱了相关性,而电场和双极-双极合强化了它们.
- 增加的内在不连贯性显著降低了所有产生的相关性.
结论:
- 两量子比特NV系统中的量子相关动态对外部参数和脱凝非常敏感.
- 需要仔细控制实验条件,以优化和保存NV中心的量子相关性.
- 该研究提供了对量子信息处理NV中心的局限性和潜力的洞察.
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