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arXiv 0905.1929gr-qc
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引力和电动力学中局域洛仑兹不变性的原子干涉检验

Atom interferometry tests of local Lorentz invariance in gravity and electrodynamics

Keng-Yeow Chung, Sheng-wey Chiow, Sven Herrmann, Steven Chu, Holger Mueller

摘要:

我们提出了后牛顿引力的局部洛伦兹不变性的原子干涉仪测试。我们已经进行的探测地球垂直重力异常的实验,使用了迄今为止分辨率最高的原子重力仪。考虑了电动力学中洛仑兹破坏的影响,给出了引力和电动力学中洛仑兹破坏的联合边界。表示在标准模型扩展或Nordtvedt的各向异性宇宙模型,我们限制十二个线性组合的7个系数的洛伦兹违反在十亿分之一的水平,从我们得到的限制6个系数(和7个时,考虑到额外的数据从月球激光测距)。我们还讨论了使用水平干涉仪,包括原子芯片或引导原子设备,这可能允许使用更长的相干时间,以实现更高的灵敏度。

英文摘要:

We present atom-interferometer tests of the local Lorentz invariance of post-Newtonian gravity. An experiment probing for anomalous vertical gravity on Earth, which has already been performed by us, uses the highest-resolution atomic gravimeter so far. The influence of Lorentz violation in electrodynamics is also taken into account, resulting in combined bounds on Lorentz violation in gravity and electrodynamics. Expressed within the standard model extension or Nordtvedt's anisotropic universe model, we limit twelve linear combinations of seven coefficients for Lorentz violation at the part per billion level, from which we derive limits on six coefficients (and seven when taking into account additional data from lunar laser ranging). We also discuss the use of horizontal interferometers, including atom-chip or guided-atom devices, which potentially allow the use of longer coherence times in order to achieve higher sensitivity.

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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