Journal of Research of the National Bureau of Standards Section A Physics and Chemistry
Vortex motions in ideal Bose superfluid
Martin J. Cooper
Abstract
A gene ra l nonlin ea r fi e ld eq u ation is d e ri ved for th e ma c roscopic ord e r parame te r of an id eal cohe re nt Bose gas.It is s hown th a t thi s non int e racti ng sys te m c an su ppo rt s table quantized vortexlike motion s within th e s uperftui d phase.It is s ugges te d th at thi s co he re nt phase of th e id ea l Bose gas describes th e dominant physi ca l feature s of rea l superft uid liquid he lium.Key wo rd s : Cohe re nt Bose gas; s up erftuid ; vort ices.