论文标题
搜索基本常数的变化
Search for Variations of Fundamental Constants
论文作者
论文摘要
基本常数值变化的可能性是由超出一般相对性的许多场景所预测的现象。如果``我们的''基本常数不是基本理论的实际常数，而它们的价值是由某些新领域的背景价值或额外维度的大小确定的。到目前为止，大多数研究都致力于限制电磁细胞结构常数$α$，质子与电子质量比$μ= m_p/m_e $的可能时间变化，而重力常数$ g _ {\ rm n} $。除了检测$α$和$μ$的时间或空间变化的一些主张，到目前为止，还没有明确的观察证据表明我们的基本常数有任何变化。
The possibility of variations of the values of fundamental constants is a phenomenon predicted by a number of scenarios beyond General Relativity. This can happen if ``our'' fundamental constants are not the actual constants of the fundamental theory and their value is instead determined, for example, by the background value of some new field or the size of extra dimensions. So far, most studies have been devoted to constrain possible temporal variations of the electromagnetic fine structure constant $α$, the proton to electron mass ratio $μ= m_p/m_e$, and the gravitational constant $G_{\rm N}$. Apart some claims of the detection of a temporal or spatial variation of $α$ and $μ$, so far there is no clear observational evidence of any variation of our fundamental constants.
