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arXiv · 2201.13200

Complex Langevin studies of the emergent space-time in the type IIB matrix model

Kohta Hatakeyama·Konstantinos Anagnostopoulos·Takehiro Azuma·Mitsuaki Hirasawa·Yuta Ito·Jun Nishimura·Stratos Papadoudis·Asato Tsuchiya
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Abstract

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.

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Kohta Hatakeyama, Konstantinos Anagnostopoulos, Takehiro Azuma, Mitsuaki Hirasawa, Yuta Ito, Jun Nishimura, Stratos Papadoudis, Asato Tsuchiya. 2022-01-31. Complex Langevin studies of the emergent space-time in the type IIB matrix model. https://doi.org/10.1142/9789811261633_0002

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