Cooper Martin J
Institute for Basic Standards, National Bureau of Standards, Washington, D.C. 20234.
J Res Natl Bur Stand A Phys Chem. 1969 May-Jun;73A(3):309-312. doi: 10.6028/jres.073A.026.
A general nonlinear field equation is derived for the macroscopic order parameter of an ideal coherent Bose gas. It is shown that this noninteracting system can support stable quantized vortex-like motions within the superfluid phase. It is suggested that this coherent phase of the ideal Bose gas describes the dominant physical features of real superfluid liquid helium.
为理想相干玻色气体的宏观序参量推导了一个一般的非线性场方程。结果表明,这个非相互作用系统在超流相内能够支持稳定的类量子涡旋运动。有人提出,理想玻色气体的这种相干相描述了真实超流液氦的主要物理特征。