正电子锂，一种电子稳定的锂离子$^+$基态
Positronic lithium, an electronically stable Li-e$^+$ ground state
摘要：
用随机变分方法计算了正电子-Li系统，得到了L=0基态的最小能量为-7.53208 Hartree.与以前的计算不同，该系统被发现是稳定的，对解离到Ps + Li $^+$通道与结合能为0.00217哈特里，因此是电子稳定的。这是第一个严格计算的例子，预测正电子与中性原子结合并形成电子稳定的束缚态是可能的。
英文摘要：
Calculations of the positron-Li system were performed using the Stochastic Variational Method and yielded a minimum energy of -7.53208 Hartree for the L=0 ground state. Unlike previous calculations of this system, the system was found to be stable against dissociation into the Ps + Li$^+$ channel with a binding energy of 0.00217 Hartree and is therefore electronically stable. This is the first instance of a rigorous calculation predicting that it is possible to combine a positron with a neutral atom and form an electronically stable bound state.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
