膜世界中的宇宙学常数可能是可调的
Cosmological constant is probably adjustable in brane worlds
摘要：
在具有宇宙学常数自调谐性质的膜世界方案中，我们研究了宇宙初始态转变为具有一定曲率的终态的概率幅。在Kim、Kyae和Lee模型中，存在一个有限的参数范围，使得到近平坦宇宙的跃迁振幅由曲率的小性（> e^{正数}/{λ-bar}^2}）指数地支配，即由几乎平坦的宇宙支配：|λ巴|<p>
英文摘要：
In the brane world scenario, possessing the self-tuning property of the cosmological constant, we study the probability amplitude for an initial state of the Universe to transform to final states with some curvatures. In the Kim, Kyae and Lee model, there exists a finite range of parameters such that the transition amplitude to a near flat universe is exponentially dominated by the smallness of curvature, > e^{positive number}/{Lambda-bar}^2}, i.e. is dominated by an almost flat universe of |Lambda-bar|<epsilon.
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