论文标题

扩展的Thomas-Fermi方法如何准确描述中子恒星的内壳?

How accurately can the Extended Thomas-Fermi method describe the inner crust of a neutron star?

论文作者

Shelley, Matthew, Pastore, Alessandro

论文摘要

我们通过对使用半经典的thomas-fermi方法(用于在中子星的内皮中使用半经典的thomas-seitz细胞获得的hartree-fock-bogoliubov方程来求解结果,进行了系统的比较。半古典方法中缺乏配对相关性导致两种方法之间存在很大的差异。这种差异远远超出了量子力学计算的误差,并且与中子气中的虚假壳效应有关。

We perform a systematic comparison between the results obtained by solving fully self-consistently the Hartree-Fock-Bogoliubov equations, and those obtained using the semi-classical Extended Thomas-Fermi method, for various Wigner-Seitz cells within the inner crust of a neutron star. The lack of pairing correlations in the semi-classical approach leads to a large discrepancy between the two approaches. This discrepancy is well beyond the error of the quantum-mechanical calculation, and is related to spurious shell effects in the neutron gas.

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