State of the art for ab initio vs empirical potentials for predicting 6e$^{-}$ excited state molecular energies: Application to Li$_{2}\left(b,1^{3}\Pi_{u}\right)$

التفاصيل البيبلوغرافية
العنوان: State of the art for ab initio vs empirical potentials for predicting 6e$^{-}$ excited state molecular energies: Application to Li$_{2}\left(b,1^{3}\Pi_{u}\right)$
المؤلفون: Dattani, Nikesh S., Roy, Robert J. Le
سنة النشر: 2015
المجموعة: Astrophysics
Physics (Other)
Quantum Physics
مصطلحات موضوعية: Physics - Chemical Physics, Astrophysics - Solar and Stellar Astrophysics, Physics - Atomic Physics, Physics - Computational Physics, Quantum Physics, 80A05, 85A99, 81V10, 81V45, 81V55, 81-08, J.2
الوصف: We build the first analytic empirical potential for the most deeply bound $\mbox{Li}_{2}$ state: $b\left(1^{3}\Pi_{u}\right)$. Our potential is based on experimental energy transitions covering $v=0-34$, and very high precision theoretical long-range constants. It provides high accuracy predictions up to $v=100$ which pave the way for high-precision long-range measurements, and hopefully an eventual resolution of the age old discrepancy between experiment and theory for the $\mbox{Li}\left(2^{2}S\right)+\mbox{Li}\left(2^{2}P\right)$ $C_{3}$ value. State of the art ab initio calculations predict vibrational energy spacings that are all in at most 0.8 cm$^{-1}$ disagreement with the empirical potential.
Comment: Feedback encouraged. 16 pages, 3 figures
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/1508.07184
رقم الأكسشن: edsarx.1508.07184
قاعدة البيانات: arXiv