论文标题
使用CU，AG和AU的亚稳态保持时间和搜索新物理
Time keeping and searching for new physics using metastable states of Cu, Ag and Au
论文作者
论文摘要
我们研究了从Cu，Ag和Au的基接地状态到亚稳态状态$^2 {\ rm D} _ {5/2} $作为光晶格时钟过渡的前景。我们计算了寿命，过渡速率，系统的变化，并证明时钟的分数不确定性可能与最佳当前光学时钟中所获得的相似。讨论了这些提出的时钟来搜索新物理学，例如良好结构常数的时间变化，寻找低质量标量暗物质，违反局部位置不变性和违反洛伦兹不变性的行为。
We study the prospects of using the electric quadrupole transitions from the ground states of Cu, Ag and Au to the metastable state $^2{\rm D}_{5/2}$ as clock transitions in optical lattice clocks. We calculate lifetimes, transition rates, systematic shifts, and demonstrate that the fractional uncertainty of the clocks can be similar to what is achieved in the best current optical clocks. The use of these proposed clocks for the search of new physics, such as time variation of the fine structure constant, search for low-mass scalar dark matter, violation of Local Position Invariance and violation of Lorenz Invariance is discussed.
