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arXiv 0906.1929hep-phastro-ph.HE
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QCD对抗黑洞?

QCD against black holes?

Ilya I. Royzen

摘要:

随着重子(中子)间距的压缩,两个非常重要的因素同时发挥作用:与可能的黑洞(BH)视界出现相关的致密中子星(NS)内缺乏自稳定性,以及核物质内的相变-颜色解除禁闭和QCD-真空重建。这就是为什么在考虑引力坍缩时,这两种现象应该同时考虑。由于在上述跃迁下,强子相真空(充满了胶子和手征$q\bar q$凝聚体)变成了“空”(微扰)亚强子相真空,因此,相应的(非常高的)压力相当突然地下降,以前冷的(简并的)核介质开始坍缩到新的真空中。如果恒星的质量足够大,那么这种坍缩会产生巨大的加热,只有在形成温度约为100 MeV(甚至更高)的夸克-胶子等离子体以承受引力压缩(而超新星爆发的最高温度至少要低一个数量级)之后,这种加热才会停止。因此,在物质进一步坍缩形成黑洞的过程中,很可能会竖起一堵“燃烧的墙”。

英文摘要:

Along with compacting baryon (neutron) spacing, two very important factors come into play at once: the lack of self-stabilization within a compact neutron star (NS) associated with possible black hole (BH) horizon appearance and the phase transition - color deconfinement and QCD-vacuum reconstruction - within the nuclear matter. That is why both phenomena should be taken into account side by side, as the gravitational collapse is considered. Since, under the above transition, the hadronic-phase vacuum (filled up with gluon and chiral $q\bar q$-condensates) turns into the "empty" (perturbation) subhadronic-phase one and, thus, the corresponding (very high) pressure falls down rather abruptly, the formerly cold (degenerated) nuclear medium starts to implode into the new vacuum. If the mass of a star is sufficiently large, then this implosion produces an enormous heating, which stops only after quark-gluon plasma of a temperature about 100 MeV (or even higher) is formed to withstand the gravitational compression (whereas the highest temperatures of supernovae bursts are, at least, one order lower). As a consequence, a "burning wall" must be, most probably, erected on the way of further collapsing the matter towards a black hole formation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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