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Complex Langevin studies of the emergent space--time in the type IIB matrix model
[article]
2022
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The 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 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 Lorentzia at late times. We discuss the possibility of the emergence of the (3+1)D expanding universe.
doi:10.48550/arxiv.2201.13200
fatcat:o2bxueqjtvhaznn3ulyu6t6kee