作者: Julian Schwinger , Lester L DeRaad , Kimball A Milton
DOI: 10.1016/0003-4916(78)90172-0
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摘要: … where in the second form we have omitted terms annihilated by the differential operator in (2.42)… Naturally, they correspond to the van der Waals forces found by Clasimir and Polder [2]. …