The Lorentzian type IIB matrix model is a promising candidate for a non-perturbative formulation of superstring theory.
However, it was recently found that a Euclidean space-time appears in the conventional large-$N$ limit.
In this work, we study the model with a Lorentz invariant mass term which can be considered as an IR regulator.
By performing complex Langevin simulations to overcome the sign problem, we observe the emergence of expanding space-time with Lorentzian signature.
Volume 436 -
Corfu Summer Institute 2022 "School and Workshops on Elementary Particle Physics and Gravity" (CORFU2022) -
Workshop on Noncommutative and Generalized Geometry in String Theory, Gauge Theory and Related Physical Models
The emergence of expanding space-time in the Lorentzian type IIB matrix model with a novel regularization
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Published on:
November 08, 2023
Abstract
DOI: https://doi.org/10.22323/1.436.0309
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.