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arXiv 2609.12124quant-ph

利用受限均匀磁场证明宏观量子相干性

Evidencing Macroscopic Quantum Coherence using Confined Uniform Magnetic Field

  • Raman Research Institute(拉曼研究所)
  • Bose Institute(玻色研究所)
  • University College London(伦敦大学学院)

机构由 AI 辅助整理,请以论文原文为准。

Dipankar Home, Harsh Talwar, Nilaj Saha, Sougato Bose, Arka Banerjee

AI总结:

本文提出一种利用受限均匀磁场创建并认证宏观物体相干叠加的新方案,通过自旋-空间纠缠实现仅用自旋测量认证,并基于NV色心纳米金刚石分析了其可行性。

AI中文摘要:

本文设计了一种此前未被探索的方案,用于创建并认证一个自旋标记的大质量物体在穿过受限均匀磁场时,其截然分离状态之间的相干量子叠加。该方案使得双分量泡利波函数的空间部分与自旋部分发生纠缠,从而仅通过自旋测量即可方便地认证所涉及的相干性。基于当前技术能力,本文利用质量约为$10^{10}$ amu的NV色心纳米金刚石分析了该方案的可实现性。

英文摘要:

A previously unexplored scheme is devised for creating and certifying coherent quantum superposition of distinctly separated states of a spin-tagged massive object passing through a confined uniform magnetic field. This results in entangling the spatial and spin parts of a two-component Pauli wavefunction such that the entailed coherence can be conveniently certified by spin measurements alone. The implementability of this scheme is analysed using NV-centre nanodiamonds of masses $\sim 10^{10}$ amu based on the current technological capabilities.

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