Probing dark energy with atom interferometry
Probing dark energy with atom interferometry
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DOI：
10.1088/1475-7516/2015/03/042
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发表时间：
2015-03-01
影响因子：
6.4
通讯作者：
Hinds, E. A.
中科院分区：
文献类型：
--
作者：
Burrage, Clare;Copeland, Edmund J.;Hinds, E. A.
暗能量理论需要一种屏蔽机制来解释为什么相关的标量场不能调节可观察到的长程第五力。它的原型是变色龙领域。在这里，我们展示了单个原子太小，不能屏蔽大的高真空室内的变色龙场，因此可以高灵敏度地探测到场。我们从现有的实验中得出了变色龙参数的新限制，并表明大多数剩余的变色龙参数空间很容易使用原子干涉计量学来获得。
Theories of dark energy require a screening mechanism to explain why the associated scalar fields do not mediate observable long range fifth forces. The archetype of this is the chameleon field. Here we show that individual atoms are too small to screen the chameleon field inside a large high-vacuum chamber, and therefore can detect the field with high sensitivity. We derive new limits on the chameleon parameters from existing experiments, and show that most of the remaining chameleon parameter space is readily accessible using atom interferometry.