论文标题
在零温度下弱非理想的bose气体量化的非线性校正。 ii。一般情况
Nonlinear corrections in the quantization of a weakly nonideal Bose gas at zero temperature. II. The general case
论文作者
论文摘要
在本文中，在Bogolyubov进近的框架内，在零温度下对弱非理想的bose气体的规范量化进行了讨论。与先前关于该主题的论文相反，这里的两体相互作用势以一般形式考虑。结果表明，在这种情况下，对第一个非线性校正的考虑也导致自动粒子数保护，而没有任何其他假设或对所得有效的哈密顿量的修改。
In the present paper, discussion of the canonical quantization of a weakly nonideal Bose gas at zero temperature within the framework of the Bogolyubov approach is continued. Contrary to the previous paper on this subject, here the two-body interaction potential is considered in the general form. It is shown that in such a case consideration of the first nonlinear correction also leads to the automatic particle number conservation without any additional assumptions or modification of the resulting effective Hamiltonian.
