Stadnik Y V, Flambaum V V
School of Physics, University of New South Wales, Sydney 2052, Australia.
Phys Rev Lett. 2014 Oct 10;113(15):151301. doi: 10.1103/PhysRevLett.113.151301.
We propose schemes for the detection of topological defect dark matter using pulsars and other luminous extraterrestrial systems via nongravitational signatures. The dark matter field, which makes up a defect, may interact with standard model particles, including quarks and the photon, resulting in the alteration of their masses. When a topological defect passes through a pulsar, its mass, radius, and internal structure may be altered, resulting in a pulsar "quake." A topological defect may also function as a cosmic dielectric material with a distinctive frequency-dependent index of refraction, which would give rise to the time delay of a periodic extraterrestrial light or radio signal, and the dispersion of a light or radio source in a manner distinct to a gravitational lens. A topological defect passing through Earth may alter Earth's period of rotation and give rise to temporary nonzero electric dipole moments for an electron, proton, neutron, nuclei and atoms.
我们提出了利用脉冲星和其他发光外星系统通过非引力特征来探测拓扑缺陷暗物质的方案。构成缺陷的暗物质场可能与包括夸克和光子在内的标准模型粒子相互作用，从而导致它们质量的改变。当一个拓扑缺陷穿过脉冲星时，其质量、半径和内部结构可能会发生变化，从而引发脉冲星“地震”。拓扑缺陷还可能作为一种具有独特频率相关折射率的宇宙介电材料，这将导致周期性外星光或无线电信号的时间延迟，以及光或射电源以不同于引力透镜的方式发生色散。穿过地球的拓扑缺陷可能会改变地球的自转周期，并使电子、质子、中子、原子核和原子产生暂时的非零电偶极矩。
