论文标题
在凝结物质系统中不保守的均衡保守
Parity non-conservation in a condensed matter system
论文作者
论文摘要
He $^3 $ Quasiparticle的核自旋溶解在超氟中，$^4 $看到与费米耦合常数，超氟冷凝水密度和he $^3 $ nucleus的电子电流成正比。尽管电流的方向必须平行于准粒子动量，但计算其幅度带来了有趣的理论挑战，因为它在Born-Oppenheimer近似中消失了。我们发现效果太小，无法观察到，并提出了我们的结果，希望其他人会受到启发，以在其他系统中寻找类似的效果。
The nuclear spin of a He$^3$ quasiparticle dissolved in superfluid He$^4$ sees an apparent magnetic field proportional to the Fermi coupling constant, the superfluid condensate density, and the electron current at the He$^3$ nucleus. Whereas the direction of the current must be parallel to the quasiparticle momentum, calculating its magnitude presents an interesting theoretical challenge because it vanishes in the Born-Oppenheimer approximation. We find the effect is too small to be observed and present our results in the hope others will be inspired to look for similar effects in other systems.
