费米黄金规则 d P, 2T F mk mk 8lEm-(Ek+ha For emission 2 F E mk m S[Em-Ek-ho)费米黄金规则 [ ( )] 2 [ ( )] 2 2 2               = − − = = − + m k E m k m k m k A m k m k m k F w For emission F dt dP w