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arXiv · 2604.25564

Impact of supersymmetry on the dynamical emergence of the spacetime in the type IIB matrix model with the Lorentz symmetry "gauge fixed"

Konstantinos N. Anagnostopoulos·Takehiro Azuma·Mitsuaki Hirasawa·Jun Nishimura·Asato Tsuchiya·Naoyuki Yamamori
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Abstract

The type IIB matrix model has been proposed as a nonperturbative formulation of superstring theory. While numerical simulations of this model are essential for probing nonperturbative effects, such as the emergence of time and an expanding 3--dimensional space, they are hindered by the sign problem. We address this using the Complex Langevin Method (CLM). Furthermore, to suppress spurious numerical artifacts that originate from large Lorentz boosts due to the Lorentz symmetry of the model, we nonperturbatively fix the Lorentz symmetry using the Faddeev--Popov procedure. We then study this model to investigate the impact of supersymmetry on the dynamical generation of (3+1)--dimensional spacetime.

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Konstantinos N. Anagnostopoulos, Takehiro Azuma, Mitsuaki Hirasawa, Jun Nishimura, Asato Tsuchiya, Naoyuki Yamamori. 2026-04-28. Impact of supersymmetry on the dynamical emergence of the spacetime in the type IIB matrix model with the Lorentz symmetry "gauge fixed". https://arxiv.org/abs/2604.25564

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