Spin-excited oscillations in two-component fermion condensates
Spin-excited oscillations in two-component fermion condensates
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DOI：
10.1103/physreva.73.013610
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发表时间：
2006-01
影响因子：
2.9
通讯作者：
T. Maruyama;G. Bertsch
中科院分区：
文献类型：
--
作者：
T. Maruyama;G. Bertsch
我们研究了两组分费米子凝聚中的集体自旋激发，特别考虑了两组分的不相等布居。利用高斯-费米理论和标度近似计算了双光子晶体的双光子和偶极模的频率。随着费米子-费米子耦合的变化，系统呈现出不同的自旋组态相。我们证明了自旋振荡比密度振荡对自旋相位结构更敏感。
We investigate collective spin excitations in two-component fermion condensates with special consideration of unequal populations of the two components. The frequencies of monopole and dipole modes are calculated using Thomas-Fermi theory and the scaling approximation. As the fermion-fermion coupling is varied, the system shows various phases of the spin configuration. We demonstrate that spin oscillations have more sensitivity to the spin phase structures than the density oscillations.