Properties of strange quark matter objects with two types of surface treatments
Properties of strange quark matter objects with two types of surface treatments
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两种表面处理的奇异夸克物质物体的性质
DOI：
10.1103/physrevd.93.085025
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发表时间：
2016-04
影响因子：
5
通讯作者：
Zhou, Shan-Gui
中科院分区：
文献类型：
--
作者：
Xia, Cheng-Jun;Peng, Guang-Xiong;Zhao, En-Guang;Zhou, Shan-Gui
我们研究奇异夸克物质（SQM）的对象，从奇异的奇异星的基础上，我们最近提出的统一描述。采用恒定表面张力和多次反射展开（MRE）方法研究了重要的界面效应。结果表明，SQM对象的属性受到不同的表面处理的强烈影响。在前一种情况下，奇异粒子更紧凑，电偶极子被预测在夸克部分的表面上，并且对于异常小的表面张力值，每个重子的能量出现局部最小值。另一方面，在后一种情况下，形成了一个势阱，并且每个重子的能量随着SQM物体的大小单调下降。据发现，MRE方案符合恒定表面张力之一，如果被认为是现实的价值。然而，夸克-真空界面上的夸克耗尽效应不能仅仅用恒定的表面张力来描述。因此，我们得出结论，地雷风险教育的设想更为合理。
We study strange quark matter (SQM) objects ranging from strangelets to strange stars based on our recently proposed unified description. The important interface effects are investigated by adopting a constant surface tension as well as the multiple reflection expansion (MRE) method. It is shown that the properties of SQM objects are strongly affected by the different surface treatments. In the former case, strangelets are more compact, an electric dipole is predicted on the surface of the quark part, and a local minimum of the energy per baryon appears for unusually small values of the surface tension. In the latter case, on the other hand, an electric potential well is formed, and the energy per baryon decreases monotonically with the SQM object's size. It is found that the MRE scenario coincides with the constant-surface-tension one if realistic values are considered. However, the effects of quark depletion on the quark-vacuum interface cannot be solely described by a constant surface tension. Thus we conclude that the MRE scenario is more reasonable.