物理学报2017，Vol.66Issue(23)：117-123,7.DOI:10.7498/aps.66.233301
用于α和µ常数变化测量的碘离子光谱研究
Spectra of I+2 for possible measurement of α and μ constant
摘要
Abstract
The forbidden transitions of I+2 may be used to measure the variations of α and μ constant in an enhanced sensitivity. We analyze the rotational spectrum of I+2 between 11860 and 13100 cm-1 and assign 5759 lines to 31 bands in an A2Π3/2-X2Π3/2 system. The accurate rotational molecular constants of 5 levels in X2Π3/2 state and 9 levels in A2Π3/2 state are obtained. On condition that the signal-to-noise ratio is limited by quantum projection noise and the linewidth is 1 Hz, the forbidden transition between X2Π3/2 and X2Π1/2 should be able to achieve the sensitivities of δα/α ≈ 2.37 × 10-19 a-1 and δμ/μ ≈ 1.18 × 10-18 a-1 .关键词
分子光谱/α/常数/µ常数/碘离子光谱/精密测量Key words
molecular spectroscopy/α constant/µ constant/spectrum of I+2/precision measurement引用本文复制引用
穆秀丽,李传亮,邓伦华,汪海玲..用于α和µ常数变化测量的碘离子光谱研究[J].物理学报,2017,66(23):117-123,7.基金项目
国家自然科学基金 (批准号: 11674096, 11504256) 资助的课题. Project supported by the National Natural Science Foundation of China (Grant Nos. 11674096, 11504256). （批准号: 11674096, 11504256）
