Evidence for nonsingular vorticity in the Helsinki experiments on rotating3He-A
Evidence for nonsingular vorticity in the Helsinki experiments on rotating3He-A
复制标题
赫尔辛基旋转 3He-A 实验中非奇涡度的证据
DOI：
10.1007/bf00683557
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发表时间：
1983
影响因子：
2
通讯作者：
G. Volovik
中科院分区：
文献类型：
--
作者：
H. Seppälä;G. Volovik
提出了旋转超流体3he -A核磁共振谱中卫星峰的理论。卫星频率上的吸收是由涡旋线上的自旋波产生的。计算了奇异涡和非奇异涡的峰值频率和总强度；与赫尔辛基核磁共振数据的比较强烈地表明，在实验中确实观察到了非奇异涡度。
A theory for the satellite peak in the NMR spectrum of rotating superfluid3He-A is presented. Absorption at the frequency of the satellite is produced by spin waves localized on vortex lines. The peak frequency and total intensity of the satellite are calculated for both singular and nonsingular vortices; a comparison with the Helsinki NMR data strongly suggests that nonsingular vorticity was actually observed in the experiments.