K介子凝聚驱动的含奇异夸克物质的致密恒星物质
Dense Stellar Matter with Strange Quark Matter Driven by Kaon Condensation
摘要：
中子星物质的核心应该比正常的核物质密度高得多，对于正常的核物质密度，已经提出了各种可能性，例如介子或超子凝聚和/或退禁闭夸克或色超导物质。在这项工作中，我们探讨了具有三个“相”的致密致密物体的强子物理的含义，该“相”是外层的核物质、中间的K介子凝聚的核物质和核心的奇异夸克物质。使用一个大大简化但并非不合理的模型，我们发展了这样一种情况，即不同的相位平滑地连接在一起，K介子凝聚态起着通往夸克核的“门口”的作用，其状态方程的参数限制在自然允许的范围内，可以与1.97太阳质量的天体PSR J1614给出的质量与半径约束相兼容，第2230章最近
英文摘要：
The core of neutron-star matter is supposed to be at a much higher density than the normal nuclear matter density for which various possibilities have been suggested such as, for example, meson or hyperon condensation and/or deconfined quark or color-superconducting matter. In this work, we explore the implication on hadron physics of a dense compact object that has three "phases", nuclear matter at the outer layer, kaon condensed nuclear matter in the middle and strange quark matter at the core. Using a drastically simplified but not unreasonable model, we develop the scenario where the different phases are smoothly connected with the kaon condensed matter playing a role of "doorway" to a quark core, the equation of state (EoS) of which with parameters restricted within the range allowed by nature could be made compatible with the mass vs. radius constraint given by the 1.97-solar mass object PSR J1614-2230 recently observed.
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