论文标题
中子物质的变分和镶木图计算。 iii。 S波配对
Variational and parquet-diagram calculations for neutron matter. III. S-wave pairing
论文作者
论文摘要
我们将Parquet-Diagram求和方法应用于中子中的$ s $ - 波配对中的超流体间隙的计算，以用于现实的核子核子相互作用，例如Argonne $ v_6 $和REID $ v_6 $势。结果表明，图木木班级以外的图形贡献起着重要作用。这些是在各种理论中被确定为所谓的“换向贡献”。此外，使用适合超氟系统的粒子孔传播器会导致自旋通道对诱导相互作用的贡献。将这些校正应用于配对相互作用，我们的结果与量子蒙特卡洛数据非常吻合。
We apply parquet-diagram summation methods for the calculation of the superfluid gap in $S$-wave pairing in neutron matter for realistic nucleon-nucleon interactions such as the Argonne $v_6$ and the Reid $v_6$ potentials. It is shown that diagrammatic contributions that are outside the parquet class play an important role. These are, in variational theories, identified as so-called "commutator contributions". Moreover, using a particle-hole propagator appropriate for a superfluid system results in the suppression of the spin-channel contribution to the induced interaction. Applying these corrections to the pairing interaction, our results agree quite well with Quantum Monte Carlo data.
