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Updated: May 20, 2025

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相对论扩展-合-集群计算P,T-二原子分子的奇异灵敏度参数

Kaushik Talukdar^1,2, Malaya K Nayak^3,4, Nayana Vaval⁵

¹Department of Chemical and Biological Sciences, National Institute of Technology Meghalaya, Sohra 793108, India.

Journal of chemical theory and computation

|May 19, 2025

概括

四组件相对论扩展合集群 (ECC) 方法准确计算了超冷分子的P,T-odd分子参数. 这种可靠的方法有助于对SrH,SrF,CaH和CaF等分子进行高精度光谱.

科学领域:

量子化学是一个量子化学.
原子和分子物理原子和分子物理
频谱学是一种光谱学.

背景情况:

高精度光谱测量需要精确的分子电子结构参数.
了解分子中的平价 (P) 和时间逆转 (T) 对称性违规对于基本物理测试至关重要.

研究的目的:

应用四组分相对论扩展合集群 (ECC) 方法来计算P,T-odd分子电子结构参数.
评估ECC方法用于研究二元原子分子中的P,T-odd特性的可靠性.

主要方法:

使用了四组分相对论扩展合集群 (ECC) 方法,一种变化方法.
计算了SrH,SrF,CaH和CaF分子的P,T-odd灵敏度参数.
在 SrF 和 SrH 中计算了 87Sr 的超细结构常数.

主要成果:

通过ECC方法,成功地确定了超冷分子的P,T-odd参数.
对SrH,SrF,CaH和CaF的计算参数与实验数据和其他理论方法有很好的一致性.
研究了电子相关性,相对论,基础集和虚拟旋转器对ECC计算的影响.

结论:

扩展合 (ECC) 方法是一种可靠的技术,用于研究二元原子分子中的P,T-奇特性质.
结果与Z向量和线性预期值方法一致,验证了ECC方法.
该研究为高精度光谱测量和基本物理研究提供了关键数据.

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