论文标题
如何用内部助焊剂创建宇宙
How to Create Universes with Internal Flux
论文作者
论文摘要
字符串压缩通常需要通量，例如为了稳定模量。当这种通量螺纹内部维度时，它们本质上是拓扑的，并且具有定量值。这构成了它们在早期宇宙中如何出现的难题，因为它们不能逐步打开。使用String启发的型号$ 6 $和$ 8 $尺寸，我们表明，没有边界解决方案，其中从宇宙开始创建中存在内部通量。因此，无限制的建议可以解释kaluza-klein环境中通量的起源。实际上，它是一种选择原理，因为只有在通量具有适当的幅度以产生有效潜力的有效潜力时，就发现了无限制的溶液，该溶液具有积极且足够平坦的有效潜力，以加速扩张。在选定的通量范围内，无限波函数为较小的通量值分配了更高的概率。我们的模型说明了宇宙学如何在可能的高维解决方案的景观上充当过滤器。
String compactifications typically require fluxes, for example in order to stabilise moduli. Such fluxes, when they thread internal dimensions, are topological in nature and take on quantised values. This poses the puzzle as to how they could arise in the early universe, as they cannot be turned on incrementally. Working with string inspired models in $6$ and $8$ dimensions, we show that there exist no-boundary solutions in which internal fluxes are present from the creation of the universe onwards. The no-boundary proposal can thus explain the origin of fluxes in a Kaluza-Klein context. In fact, it acts as a selection principle since no-boundary solutions are only found to exist when the fluxes have the right magnitude to lead to an effective potential that is positive and flat enough for accelerated expansion. Within the range of selected fluxes, the no-boundary wave function assigns higher probability to smaller values of flux. Our models illustrate how cosmology can act as a filter on a landscape of possible higher-dimensional solutions.
