论文标题
IIB型矩阵模型中新兴时空的复杂Langevin研究
Complex Langevin studies of the emergent space-time in the type IIB matrix model
论文作者
论文摘要
自1996年以来，已经提出了IIB矩阵类型模型作为超边缘理论的非扰动定义。我们研究了一种简化的模型，该模型描述了使用Monte Carlo方法非扰动的IIB矩阵模型的晚期行为，我们使用复杂的Langevin方法来克服符号问题。我们调查了一种场景，即时空签名在较早时期从欧几里得动态变化为晚期洛伦兹。我们讨论了（3+1）d扩展宇宙的出现的可能性。
The type IIB matrix model has been proposed as a non-perturbative definition of superstring theory since 1996. We study a simplified model that describes the late time behavior of the type IIB matrix model non-perturbatively using Monte Carlo methods, and we use the complex Langevin method to overcome the sign problem. We investigate a scenario where the space-time signature changes dynamically from Euclidean at early times to Lorentzian at late times. We discuss the possibility of the emergence of the (3+1)D expanding universe.
