arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0911.4776physics.ins-dethep-ex
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问答实验的现状与展望

The status and prospects of the Q & A experiment with some applications

Hsien-Hao Mei, Wei-Tou Ni, Sheng-Jui Chen, Sheau-shi Pan

摘要:

为了测量QED双折射和探测赝标量光子相互作用,我们于1994年开始建立Q & A实验(QED [量子电动力学]和Axion实验)。在这次演讲中,我们首先回顾了我们的3.5米法布里-珀罗干涉仪连同我们的测量气体的棉花木桐效应的结果。我们正在升级我们的干涉仪,以7米的臂长与一个新的1.8米2.3 T永磁体能够旋转高达13周每秒。我们将使用532 nm Nd:YAG激光器作为光源,腔精细度约为100,000,并以10 nrad/Hz^{1/2}的光学灵敏度为目标。随着真空度的提高,QED双折射将在50天内达到28%。在此过程中,我们应该能够显着改善二色性检测。

英文摘要:

Motivated to measure the QED birefringence and to detect pseudoscalar-photon interaction, we started to build up the Q & A experiment (QED [Quantum Electrodynamics] and Axion experiment) in 1994. In this talk, we first review our 3.5 m Fabry-Perot interferometer together with our results of measuring Cotton-Mouton effects of gases. We are uprading our interferometer to 7 m armlength with a new 1.8 m 2.3 T permanent magnet capable of rotation up to 13 cycles per second. We will use 532 nm Nd:YAG laser as light source with cavity finesse around 100,000, and aim at 10 nrad/Hz^{1/2} optical sensitivity. With all these achieved and the upgrading of vacuum, QED birefringence would be measured to 28% in about 50 days. Along the way, we should be able to improve on the dichroism detection significantly.

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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