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基于Lifshitz理论的相同电介质分子间等效吸引势 被引量:1

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摘要 应用Lifshitz根据量子电动力学建立的vanderWaals力的一般理论 ,导出真空中相同电介质分子间的vanderWaals吸引势 ,以期给出相同分子 (包括原子团 )间等效相互作用势 .首先根据所提出的假设求出了相同粒子间相互吸引势积分式的解析解 .在此基础上 ,通过电子极化理论将所导出的由宏观物理量表示的公式与著名的London公式进行了比较 ,两者仅差一个因子 4/π或 4 π (ε∞ + 2 ) / 32 .为了验证所导出的等效吸引势的可靠性 ,对几种电介质进行了计算 ,并与London色散公式的计算值以及由实验和理论方法所给出的推荐值进行了对比 .作为一个算例 ,还给出了聚乙烯的等效作用势 ,其阱深处于合理的范围 .
出处 《中国科学(A辑)》 CSCD 2000年第7期631-638,共8页 Science in China(Series A)
基金 国家自然科学基金资助项目!(批准号 :196 82 0 0 2 )
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同被引文献17

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