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arXiv 2106.09210hep-phphysics.atom-ph
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磁强计探测暗物质与新物理

Comagnetometer probes of dark matter and new physics

Princeton University(普林斯顿大学)

W. A. Terrano, M. V. Romalis

AI总结:

本文探讨了磁强计在探测与费米子自旋耦合的新物理中的应用,指出其在量子态能量差测量中具有极高的灵敏度,并分析了可能的改进空间及系统误差来源。

摘要:

我们讨论了利用磁强计研究与费米子自旋耦合的新物理的用途。现代磁强计在绝对能量单位中是测量量子态能量差最敏感的实验技术,达到10^-26 eV量级的灵敏度。该技术抑制了自旋的磁相互作用,使探测非标准模型相互作用成为可能。许多实现已被开发并优化用于各种用途。可被磁强计探测的新物理场景包括电偶极矩、洛伦兹不变性破坏、新高能对称性的金斯博子、违反CP的长程力以及轴子暗物质。我们考虑了技术改进的前景,并基于现有技术的信噪比,表明还有多个数量级的改进空间。我们还评估了几种可能限制改进的系统误差和不稳定性来源。

英文摘要:

We discuss the use of comagnetometry in studying new physics that couples to fermionic spin. Modern comagnetometry is -- in absolute energy units -- the most sensitive experimental technique for measuring the energy difference between quantum states, reaching sensitivities in the $10^{-26}\,$eV range. The technique suppresses the magnetic interactions of the spins, making searches for non-standard-model interactions possible. Many implementations have been developed and optimized for various uses. New physics scenarios which can be probed with comagnetometers include: EDMs, violations of Lorentz invariance, Goldstone bosons of new high-energy symmetries, CP-violating long-range forces, and axionic dark matter. We consider the prospects for improvements in the technique, and show -- based purely on signal-to-noise ratio with existing technology -- that there is room for several orders of magnitude in further improvement. We also evaluate several sources of systematic error and instability that may limit improvements.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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