论文标题
从沼泽和量化的紧凑型的微小宇宙常数的辐射稳定性
Radiative stability of tiny cosmological constant from the Swampland and quantized compactification
论文作者
论文摘要
我们谈到了一种量化机制，该机制可以使我们能够理解为什么在研究与爱因斯坦重力耦合的标准模型的圆形紧凑型解决方案下，宇宙学常数并不大，这受swampland uncoventures的约束。与文献中先前的研究相比，本工作的新结果是，实际上必须量化压缩维度的半径和4D宇宙常数$λ_4$。宇宙常数的量化规则由$λ_4\ propto n^2 $，$ n = 1,2,3,4，\ ldots $给出，这意味着$λ_4$的值不是任意的，但仅允许其特定值。通常，量子校正以及其他效果将打破此量化规则。因此，它可以防止量子波动产生零点能量对宇宙常数的贡献。
We address a quantization mechanism that can allow us to understand why the cosmological constant is not large under the quantum corrections from studying the circle compactification solution of the Standard Model coupled to Einstein gravity which is subject to the constraint of the Swampland conjectures. A novel result in the present work compared to the previous investigations in the literature is that the radius of the compactified dimension and the 4D cosmological constant $Λ_4$ must in fact be quantized. The quantization rule of the cosmological constant is given by $Λ_4\propto n^2$ with $n=1,2,3,4,\ldots$, which means that the values of $Λ_4$ are not arbitrary but only its specific values are allowed. In general, the quantum corrections as well as other effects would break this quantization rule. Hence, it could prevent the quantum fluctuations from generating zero-point energy contributions to the cosmological constant.
