At the temperature of absolute zero, the results obtained are in agreement with those of Bogoliubov and Beliaev, and others.
在绝对零度下所得到的结果与波戈留博夫及白利亚也夫等人的相一致。
2
In the two-sublattice model, the Heisenberg exchange interaction Hamiltonian of the simple ferrimagnetic crystal can be made diagonalization by the use of HP, Fourier and Bogoliubov transformation.