arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0704.2126hep-phastro-ph
收藏

奇异星与宇宙学常数问题

Strange stars and the cosmological constant problem

Cosimo Bambi

摘要:

宇宙学常数问题代表了我们目前对引力和粒子物理学的描述之间的一种明显的张力。人们提出了许多解决方案,但实验测试总是很困难或不可能进行,目前的唯象研究只集中在与暗能量的可能关系,即与当代宇宙的加速膨胀率。在这里,我认为,奇异星,如果它们存在的话,可以代表一个有趣的实验室来研究这个难题,因为它们的平衡构型部分地由QCD真空能量密度决定。

英文摘要:

The cosmological constant problem represents an evident tension between our present description of gravity and particle physics. Many solutions have been proposed, but experimental tests are always difficult or impossible to perform and present phenomenological investigations focus only on possible relations with the dark energy, that is with the accelerating expansion rate of the contemporary universe. Here I suggest that strange stars, if they exist, could represent an interesting laboratory to investigate this puzzle, since their equilibrium configuration is partially determined by the QCD vacuum energy density.

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。

↑