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从包括对力、四极对力及四极力的核子－核子有效相互作用出发，依据以广义的Ｄｙｓｏｎ展开方法所建立的微观理论方案，对同中子异荷素１５４Ｄｙ、１５６Ｅｒ和１５８Ｙｂ的低能态及高自旋态进行了研究．实际计算时，低能态及高自旋态分别用（ｓｄ）Ｎ组态及（ｓｄ）Ｎ－１加两中子组态描述，且取用了统一的参数值．计算结果与实验符合较好，特别是理论较好地复现了原子核的第一个回弯．
Starting from the effective nuclear-nucleon interaction including force, quadrupole force and quadrupole force, according to the micro-theoretical scheme established by the generalized Dyson expansion method, the low energy states of isotopes 154Dy, 156Er and 158Yb And high spin states were studied. In actual calculation, the states of low energy state and high spin state are described by (sd) N configuration and (sd) N-1 plus two neutron configuration respectively, and the uniform parameter values are taken. The calculated results are in good agreement with the experiment. In particular, the theory reproduces the first bend of the nucleus well.