从广义不确定原理看重子不对称性
Baryon Asymmetry from the Generalized Uncertainty Principle
摘要：
宇宙中无法解释的重子不对称性是物理学中一个长期存在的问题，迄今为止还没有令人满意的解决方案。为了解释这种不对称性，必须满足三个萨哈罗夫条件。考虑了耦合时空和重子流的相互作用项，它满足前两个萨哈罗夫条件。此外，还证明了量子引力的广义不确定原理（GUP）通过全息原理对宇宙学中的Friedmann方程进行了修正。GUP在辐射占优时期也引起能量和气压密度的变化，满足第三萨哈罗夫条件。因此，这种结构为观察到的重子不对称性提供了一个可行的解释。这也将GUP参数固定为$α_0\approx10^4$和$β_0\approx-10^8$。
英文摘要：
The unexplained observed baryon asymmetry in the Universe is a long-standing problem in physics, with no satisfactory resolution so far. To explain this asymmetry, three Sakharov conditions must be met. An interaction term which couples space-time and the baryon current is considered, which satisfies the first two Sakharov conditions. Furthermore, it is shown that the Generalized Uncertainty Principle (GUP) from quantum gravity induces corrections to the Friedmann equations in cosmology, via the holographic principle. GUP also induces variations of energy and pressure density in the radiation dominated era, which satisfies the third Sakharov condition. Therefore, this construction provides a viable explanation for the observed baryon asymmetry. This also fixes the GUP parameters to $α_0\approx10^4$ and $β_0\approx-10^8$.
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