Arvanitaki Asimina, Dimopoulos Savas, Van Tilburg Ken
Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5, Canada.
Stanford Institute for Theoretical Physics, Stanford University, Stanford, California 94305, USA.
Phys Rev Lett. 2016 Jan 22;116(3):031102. doi: 10.1103/PhysRevLett.116.031102.
The fine-structure constant and the electron mass in string theory are determined by the values of scalar fields called moduli. If the dark matter takes on the form of such a light modulus, it oscillates with a frequency equal to its mass and an amplitude determined by the local dark-matter density. This translates into an oscillation of the size of a solid that can be observed by resonant-mass antennas. Existing and planned experiments, combined with a dedicated resonant-mass detector proposed in this Letter, can probe dark-matter moduli with frequencies between 1 kHz and 1 GHz, with much better sensitivity than searches for fifth forces.
在弦理论中，精细结构常数和电子质量由被称为模量的标量场的值决定。如果暗物质呈现出这种轻模量的形式，它会以等于其质量的频率振荡，其振幅由局部暗物质密度决定。这转化为固体尺寸的振荡，可通过共振质量天线观测到。现有的和计划中的实验，结合本论文中提出的专用共振质量探测器，能够探测频率在1千赫兹至1吉赫兹之间的暗物质模量，其灵敏度比寻找第五种力的实验要好得多。
