论文标题
解决宇宙常数问题的解决方案
A solution for the cosmological constant problem
论文作者
论文摘要
我们认为宇宙常数与粒子物理模型的真空能量密度有关。在欧几里得量子重力的路径整体形式中，在罗伯逊·沃克度量标准的背景下，我们仅计算物质密度对波动度量的贡献。这在作用中产生了有效的术语，该术语可作为对物质真空能量密度的校正。该方法导致观察到的宇宙常数，而无需重力或粒子物理扇区进行任何微调。
We consider that the cosmological constant is associated with the vacuum energy density of a particle physics model. In the path integral formalism of euclidean quantum gravity and in the background of the Robertson Walker metric we calculate only the contribution of the matter density to the fluctuating metric. This produces an effective term in the action that acts as a correction to the vacuum energy density of the matter. The method leads to the observed cosmological constant without the need of any fine tuning in the gravity or particle physics sectors.
