【摘要】 本文具体地从一个理想模型讨论了集体运动自由度的选定及其表示问题.从它的动力学群出发,指出虽然可以有不同的连续变量或玻色子表示,但是,独立集体自由度的数目是唯一地确定了的.如果涉及超过这个数目的集体自由度,则必有伴随的条件.更多还原

【Abstract】 The choice and representation of degrees of freedom of collective motions are thoroughlydiscussed.Starting from the dynamical group of a shematic model,it is pointed out that thenumber of independent collective degrees of freedom is uniquely determined,although thereexist different continuous variable or boson representations.If more collective degrees of fre-edom were involved,there must be accompanied conditions.更多还原