| 单词 | ls-coupling |
| 释义 | > as lemmasLS-coupling LS-coupling, an approximation used in the quantum theory of the atom when the spin-orbit interaction of individual electrons is small compared with the remaining electrostatic interaction between one electron and another, so that the orbital angular momenta of the electrons may be coupled to give a resultant L, their spins coupled to give a resultant S, and these resultants coupled in turn to give the total angular momentum J of the electrons. Also called Russell-Saunders coupling. Cf. jj-coupling at J n. 6c.extracted from Ln.< as lemmas |
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