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arXiv 2010.01451physics.atom-ph
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CeNTREX:对$^{205}$ Tl核时间反演对称性破坏的新探索

CeNTREX: A new search for time-reversal symmetry violation in the $^{205}$Tl nucleus

Olivier Grasdijk, Oskari Timgren, Jakob Kastelic, Trevor Wright, Steve Lamoreaux, David DeMille, Konrad Wenz, Michael Aitken, Tanya Zelevinsky, Tristan Winick, David Kawall

摘要:

冷分子核时间反演实验(CeNTREX)是一项新的实验,旨在提高强子时间反演($T$)破坏基本相互作用强度的灵敏度。实验特征将是极化氟化铊(TlF)分子中$^{205}$ Tl的核磁共振频率的偏移。在这里,我们描述了研究这些违反$T$的相互作用和使用TIF这样做的动机。为了实现比TlF中的$T$违反的早期搜索更高的灵敏度,CeNTREX使用低温分子束源、光学状态制备和检测以及相干量子态操纵的现代方法。详细的测量方案和设备的当前状态,与TIF光束的定量测量。最后讨论了灵敏度估计和控制系统误差的方法。

英文摘要:

The Cold molecule Nuclear Time-Reversal EXperiment (CeNTREX) is a new effort aiming for a significant increase in sensitivity over the best present upper bounds on the strength of hadronic time reversal ($T$) violating fundamental interactions. The experimental signature will be shifts in nuclear magnetic resonance frequencies of $^{205}$Tl in electrically-polarized thallium fluoride (TlF) molecules. Here we describe the motivation for studying these $T$-violating interactions and for using TlF to do so. To achieve higher sensitivity than earlier searches for $T$-violation in TlF, CeNTREX uses a cryogenic molecular beam source, optical state preparation and detection, and modern methods of coherent quantum state manipulation. Details of the measurement scheme and the current state of the apparatus are presented, with quantitative measurements of the TlF beam. Finally, the estimated sensitivity and methods to control systematic errors are discussed.

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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