A proposal for detection of absolute rotation using superconductors and large voltages
A proposal for detection of absolute rotation using superconductors and large voltages
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DOI：
10.1016/j.physleta.2020.126994
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发表时间：
2021-01-18
影响因子：
2.6
通讯作者：
Speake, C. C.
中科院分区：
文献类型：
--
作者：
Forgan, E. M.;Muirhead, C. M.;Speake, C. C.
我们描述了实用的绝对旋转探测器的设计，它依赖于相对于惯性系旋转的带电物体产生的磁场。我们的设计灵感来自R.M. Brady的原创建议，利用超导体的特性，既可以屏蔽和限制磁场，也可以作为SQUID探测器产生磁场的基础。我们证明，利用商业上可用的squid，我们的设计可以有足够的灵敏度和信噪比来测量地球的恒星自转速度。我们考虑了三种不同的设计：其中两种也可以配置为麦克斯韦方程组在旋转框架中的形式。我们还可以对低频电磁能是否与物质具有相同的惯性静止系进行直接实验检验。(C) 2020 Elsevier B.V.版权所有
We describe designs for practical detectors of absolute rotation, which rely on the creation of magnetic fields by charged objects that are rotating with respect to an inertial frame. Our designs, motivated by an original suggestion by R.M. Brady, utilize the properties of superconductors, both to shield and confine the magnetic fields, and also as the basis of a SQUID detector of the fields produced. We show that with commercially available SQUIDs, our designs can have sufficient sensitivity and signal-to-noise ratio to measure the sidereal rate of rotation of the Earth. We consider three different designs: two of these can also be configured to provide a confirmation of the form that Maxwell's equations take in a rotating frame. We can also make a direct experimental test of whether low-frequency electromagnetic energy experiences the same inertial rest-frame as matter. (C) 2020 Elsevier B.V. All rights reserved.