超流~ 3 He-B的磁声光谱
Magneto-Acoustic Spectroscopy in Superfluid 3He-B
摘要：
我们利用最近发现的超流~ 3 He中的声法拉第效应对超流凝聚体的激发态进行了高分辨光谱研究。利用声腔干涉法，我们测量了沿磁场方向传播的横向声波的偏振面的旋转，由此我们确定了激发态的塞曼能量。我们用Sauls和Serene的理论解释了Lande g因子，结合零场能，计算了3 He中f波相互作用的强度。
英文摘要：
We have used the recently discovered acoustic Faraday effect in superfluid 3He to perform high resolution spectroscopy of an excited state of the superfluid condensate. With acoustic cavity interferometry we measure the rotation of the plane of polarization of a transverse sound wave propagating in the direction of magnetic field from which we determine the Zeeman energy of the excited state. We interpret the Lande g-factor, combined with the zero-field energies of the state, using the theory of Sauls and Serene to calculate the strength of f -wave interactions in 3He.
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