Functional renormalization-group calculation of the equation of state of one-dimensional uniform matter inspired by the Hohenberg-Kohn theorem
Functional renormalization-group calculation of the equation of state of one-dimensional uniform matter inspired by the Hohenberg-Kohn theorem
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受 Hohenberg-Kohn 定理启发的一维均匀物质状态方程的泛函重正化群计算
DOI：
10.1103/physrevc.99.024302
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发表时间：
2019
影响因子：
3.1
通讯作者：
Kunihiro Teiji
中科院分区：
文献类型：
--
作者：
Yokota Takeru;Yoshida Kenichi;Kunihiro Teiji
我们提出了我们所知的第一个成功的泛函重整群（FRG）辅助密度泛函理论（DFT）计算无自旋核子组成的（1+1）维无限核物质（NM）的状态方程（EOS）。我们给出了一个描述无限物质的公式，其中引入了“流动”化学势来控制流动过程中粒子数的期望值。所得的饱和能与蒙特卡罗法所得的饱和能在几个百分点内一致。我们的结果表明，frg辅助DFT可以像量子多体理论中的任何其他方法一样强大。
We present to our knowledge the first successful functional renormalization group (FRG)–aided density-functional theory (DFT) calculation of the equation of state (EOS) of infinite nuclear matter (NM) in (1+1) dimensions composed of spinless nucleons. We give a formulation to describe infinite matters in which the “flowing” chemical potential is introduced to control the expectation value of the particle number during the flow. The resultant saturation energy of the NM coincides with that obtained by the Monte Carlo method within a few percent. Our result demonstrates that the FRG-aided DFT can be as powerful as any other methods in quantum many-body theory.