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arXiv 1010.3041astro-ph.HEhep-phnucl-th
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MCFL相的状态方程及其对致密星模型的意义

Equation of state for the MCFL phase and its implications for compact star models

L. Paulucci, Efrain J. Ferrer, Vivian de la Incera, J. E. Horvath

摘要:

利用磁场中成对夸克物质的磁色味锁(MCFL)相的能隙方程的解,并考虑到由于场致空间旋转对称破缺而引起的纵向压力和横向压力的分离,自洽地确定了MCFL相的状态方程.这个结果,然后被用来调查的可能性,绝对稳定,这原来需要一个依赖于场的袋常数举行。也就是说,只有当袋常数随磁场变化时,在磁场与袋常数的平面上才存在奇异物质绝对稳定的窗口。计算和讨论了磁化(自约束)奇异星和混合(MCFL核心)星的恒星模型的影响。

英文摘要:

Using the solutions of the gap equations of the magnetic-color-flavor-locked (MCFL) phase of paired quark matter in a magnetic field, and taking into consideration the separation between the longitudinal and transverse pressures due to the field-induced breaking of the spatial rotational symmetry, the equation of state (EoS) of the MCFL phase is self-consistently determined. This result is then used to investigate the possibility of absolute stability, which turns out to require a field-dependent bag constant to hold. That is, only if the bag constant varies with the magnetic field, there exists a window in the magnetic field vs. bag constant plane for absolute stability of strange matter. Implications for stellar models of magnetized (self-bound) strange stars and hybrid (MCFL core) stars are calculated and discussed.

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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