A Feynman propagator is constructed for the effective interaction between electrons which takes into account the polarizability of the medium of unexcited particles in the Fermi sea.
欲从实验
理论完整

白质的稳定性及动性是
个挑战,这往往需要对摺

摺
态的
白质之间交互作用做具体的分析。
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Her voice, cool and unmoved, disturbed him, but not as he had expected. This was the voice of a stranger, unexcited, pleasantly glad to see him — that was all. He wanted to put down the telephone and catch his breath.
她的声音冷静而毫无波澜,令他感到不安,但并非如他所预期的那样。那是陌生人的声音,毫无激情,只是礼貌性地对他表示欢迎——仅此而已。他
放下电话,喘口气。