IBM内禀基带、单声子激发带和双声子激发带的转动惯量及能谱

The Moment of Inertia and Energy Spectrum for IBM Intrinsic Ground-State Single Phonon and Double Phonon Excited-States

首先给出IBM内禀基态、单声子激发态和双声子激发态,其中双声子态由单声子态的不同组合而成。哈密顿量取SU(3)极限加对相互作用;然后,利用推转理论对各带的转动惯量及能谱进行自洽推转计算,得出合理的解析表达式;最后,以_(68)^(168)Er_(100)为例分析了结果的正确性。

The IBM intrinsic ground-state, single phonon and double phonon excited-states are given, where the double phonon states are different linear combinations of single phonon states. The Hamiltonian is defined as both SU(3) limit and pairing interaction. Using cranking theory, the moment of inertia and energy spectrum for these states are calculated, and rational analytical expressions obtained. As an example, the rationality of these results is also discussed for ^(168)Er.