论文标题
对无边界量子宇宙学的滚动限制
Swampland Constraints on No-Boundary Quantum Cosmology
论文作者
论文摘要
哈特尔·纳尔（Hartle-Hawking No-Boundary）提案描述了宇宙的量子创造。要获得获得经典膨胀宇宙的不可忽略的概率，需要永恒的通货膨胀，这受到了Swampland猜想的严重限制，例如精制的De Sitter猜想和距离猜想。我们详细讨论了此问题并证明了不相容性。我们表明，精制的DE Sitter猜想中的无量纲参数应通过标量潜力的积极力量以实现经典扩展的宇宙的限制。换句话说，除非参数比统一小得多，否则经典扩展宇宙的概率极小。另一方面，如果它们是秩序的统一，则鞍点解决方案本身就不再存在意味着真正的量子宇宙。
The Hartle-Hawking no-boundary proposal describes the quantum creation of the universe. To have a non-negligible probability to obtain a classical expanding universe, eternal inflation is required, which is severely constrained by Swampland conjectures such as the refined de Sitter conjecture and the distance conjecture. We discuss this issue in detail and demonstrate the incompatibility. We show that the dimensionless parameters in the refined de Sitter conjecture should be bounded from above by a positive power of the scalar potential to realize the classical expanding universe. In other words, the probability of the classical expanding universe is extremely small under the Swampland conjectures unless the parameters are much smaller than unity. If they are order unity, on the other hand, the saddle-point solution itself ceases to exist implying a genuinely quantum universe.
