自旋极化液体3He
Spin polarized liquid 3He
摘要：
采用约束变分法研究了自旋极化对液态$^3{\rm He}$基态性质的影响。我们发现，自旋极化相相对于非极化相具有更强的相关性。结果表明，液体$^3{\rm He}$的内能随着极化的增加而增加，在整个液体密度范围内，极化和非极化能量曲线之间没有交叉点。所得到的内能曲线表明，即使在完全自旋极化的情况下，束缚态。我们还研究了用抛物线公式计算自旋极化液体$^3{\rm He}$能量的有效性。最后，将所得结果与其它计算结果进行了比较。
英文摘要：
We have employed the constrained variational method to study the influence of spin polarization on the ground state properties of liquid $^3{\rm He}$. The spin polarized phase, we have found, has stronger correlation with respect to the unpolarized phase. It is shown that the internal energy of liquid $^3{\rm He}$ increases by increasing polarization with no crossing point between polarized and unpolarized energy curves over the liquid density range. The obtained internal energy curves show a bound state, even in the case of fully spin polarized matter. We have also investigated the validity of using a parabolic formula for calculating the energy of spin polarized liquid $^3{\rm He}$. Finally, we have compared our results with other calculations.
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