PoS - Proceedings of Science
Volume 430 - The 39th International Symposium on Lattice Field Theory (LATTICE2022) - Theoretical Developments
The emergence of expanding space-time in a novel large-$N$ limit of the Lorentzian type IIB matrix model
M. Hirasawa*, K. Anagnostopoulos, T. Azuma, K. Hatakeyama, J. Nishimura, S. Papadoudis and A. Tsuchiya
Full text: pdf
Pre-published on: February 07, 2023
Published on: April 06, 2023
The Lorentzian type IIB matrix model is a promising candidate for a non-perturbative formulation of superstring theory. However, it was found recently that a Euclidean space-time appears in the conventional large-$N$ limit. In this work, we add a Lorentz invariant mass term to the original model and consider a limit, in which the coefficient of the mass term vanishes at large $N$. By performing complex Langevin simulations to overcome the sign problem, we observe the emergence of expanding space-time with the Lorentzian signature.
DOI: https://doi.org/10.22323/1.430.0371
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.