Precision test of mass-ratio variations with lattice-confined ultracold molecules.
Precision test of mass-ratio variations with lattice-confined ultracold molecules.
复制标题
DOI：
10.1103/physrevlett.100.043201
复制
发表时间：
2007-08
影响因子：
8.6
通讯作者：
T. Zelevinsky;S. Kotochigova;Jun Ye
中科院分区：
文献类型：
--
作者：
T. Zelevinsky;S. Kotochigova;Jun Ye
我们提出了一种利用光学晶格中的超冷分子精确测量质子-电子质量比随时间变化的方法。振动能隙对质量比的变化很敏感。与使用基于超精细间隔的原子钟的测量不同，这里讨论的方案是与模型无关的，并且不需要分离不同物理常数的时间变化。探索了应用零微分-斯塔克位移光学晶格技术高精度测量振动跃迁的可能性。
We propose a precision measurement of time variations of the proton-electron mass ratio using ultracold molecules in an optical lattice. Vibrational energy intervals are sensitive to changes of the mass ratio. In contrast to measurements that use hyperfine-interval-based atomic clocks, the scheme discussed here is model independent and does not require separation of time variations of different physical constants. The possibility of applying the zero-differential-Stark-shift optical lattice technique is explored to measure vibrational transitions at high accuracy.