论文标题
动力学的和时间的开始：超临界字符串和旋转凝结
Dynamical Cobordism and the Beginning of Time: Supercritical Strings and Tachyon Condensation
论文作者
论文摘要
我们将超临界字符串理论的平时线性DILATON背景描述为弦理论中时间依赖的动力学，其间距奇异性是定义时间开始的边界。我们提出并提供了令人信服的证据，表明其显微镜解释对应于（强耦合版本的）封闭式旋转的区域。我们认为，这个时间的开始与（并具有与弱耦合背景中与灯光般的旋转式凝结相同的气泡相同的缩放行为）密切相关（并具有相同的规模行为。作为中间结果，我们还提供了后者的描述为轻型动力学恢复。
We describe timelike linear dilaton backgrounds of supercritical string theories as time-dependent Dynamical Cobordisms in string theory, with their spacelike singularity as a boundary defining the beginning of time. We propose and provide compelling evidence that its microscopic interpretation corresponds to a region of (a strong coupling version of) closed tachyon condensation. We argue that this beginning of time is closely related to (and shares the same scaling behaviour as) the bubbles of nothing obtained in a weakly coupled background with lightlike tachyon condensation. As an intermediate result, we also provide the description of the latter as lightlike Dynamical Cobordism.
