# A new phase in the Lorentzian type IIB matrix model and the emergence of continuous space-time

@article{Hirasawa2021ANP, title={A new phase in the Lorentzian type IIB matrix model and the emergence of continuous space-time}, author={Mitsuaki Hirasawa and Konstantinos N. Anagnostopoulos and Takehiro Azuma and Kohta Hatakeyama and Yuta Ito and Jun Nishimura and Stratos Kovalkov Papadoudis and Asato Tsuchiya}, journal={Proceedings of The 38th International Symposium on Lattice Field Theory — PoS(LATTICE2021)}, year={2021} }

Mitsuaki Hirasawa, Konstantinos N. Anagnostopoulos, Takehiro Azuma, Kohta Hatakeyama, Yuta Ito, Jun Nishimura, Stratos Kovalkov Papadoudis and Asato Tsuchiya 5 KEK Theory Center, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan Physics Department, School of Applied Mathematical and Physical Sciences, National Technical University, Zografou Campus, GR-15780 Athens, Greece Institute for Fundamental Sciences, Setsunan University, 17-8 Ikeda Nakamachi…

## 6 Citations

### Signature change of the emergent space-time in the IKKT matrix model

- Physics
- 2022

The IKKT matrix model (or the type IIB matrix model) is known as a promising candidate for a nonperturbative formulation of superstring theory in ten dimensions. As a most attractive feature, the…

### The emergence of expanding space-time in a novel large-$N$ limit of the Lorentzian type IIB matrix model

- Physics, MathematicsProceedings of The 39th International Symposium on Lattice Field Theory — PoS(LATTICE2022)
- 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…

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

- PhysicsProceedings of the East Asia Joint Symposium on Fields and Strings 2021
- 2022

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…

### Emergent metric space-time from matrix theory

- PhysicsJournal of High Energy Physics
- 2022

The IKKT matrix model yields an emergent space-time. We further develop these ideas and give a proposal for an emergent metric. Based on previous numerical studies of this model, we provide evidence…

### Spontaneous symmetry breaking in the BFSS model: Analytical results using the Gaussian expansion method

- Physics
- 2022

We apply the Gaussian expansion method to the BFSS matrix model in the high temperature limit. When the (Euclidean) BFSS action is expanded about a Gaussian ansatz, it is shown that the SO(9)…

### BFSS Matrix Model Cosmology: Progress and Challenges

- PhysicsPhysics
- 2022

We review a proposal to obtain an emergent metric space-time and an emergent early universe cosmology from the Banks–Fischler–Shenker–Susskind (BFSS) matrix model. Some challenges and directions for…

## References

SHOWING 1-10 OF 40 REFERENCES

### Relationship between the Euclidean and Lorentzian versions of the type IIB matrix model

- Education
- 2021

Kohta Hatakeyama,0,∗ Konstantinos Anagnostopoulos, Takehiro Azuma, Mitsuaki Hirasawa , Yuta Ito, Jun Nishimura, Stratos Papadoudis and Asato Tsuchiya 5 Theory Center, Institute of Particle and…

### Complex Langevin analysis of the space-time structure in the Lorentzian type IIB matrix model

- PhysicsJournal of High Energy Physics
- 2019

A bstractThe Lorentzian type IIB matrix model has been studied as a promising candidate for a nonperturbative formulation of superstring theory. In particular, the emergence of (3+1)D expanding…

### A renormalization group method for studying the early universe in the Lorentzian IIB matrix model

- Physics
- 2013

We propose a new method for studying the early universe in the Lorentzian version of the IIB matrix model, which is considered to be a nonperturbative formulation of superstring theory. This method…

### The emergence of expanding space–time and intersecting D-branes from classical solutions in the Lorentzian type IIB matrix model

- PhysicsProgress of Theoretical and Experimental Physics
- 2020

The type IIB matrix model is a promising candidate for a nonperturbative formulation of superstring theory. As such, it is expected to explain the origin of space–time and matter at the same time.…

### On the structure of the emergent 3D expanding space in the Lorentzian type IIB matrix model

- PhysicsProgress of Theoretical and Experimental Physics
- 2019

The emergence of (3+1)D expanding space-time in the Lorentzian type IIB matrix model is an intriguing phenomenon that has been observed in Monte Carlo studies of this model. In particular, this may…

### Complex Langevin analysis of the spontaneous breaking of 10D rotational symmetry in the Euclidean IKKT matrix model

- Physics
- 2020

The IKKT matrix model is a promising candidate for a nonperturbative formulation of superstring theory. In this model, spacetime is conjectured to emerge dynamically from the microscopic matrix…

### Systematic study of the SO(10) symmetry breaking vacua in the matrix model for type IIB superstrings

- Physics
- 2011

We study the properties of the space-time that emerges dynamically from the matrix model for type IIB superstrings in ten dimensions. We calculate the free energy and the extent of space-time using…

### Large-scale computation of the exponentially expanding universe in a simplified Lorentzian type IIB matrix model

- Physics
- 2015

The type IIB matrix model is a conjectured nonperturbative formulation of superstring theory. Recent studies on the Lorentzian version of the model have shown that only three out of nine spatial…

### Complex Langevin analysis of the spontaneous symmetry breaking in dimensionally reduced super Yang-Mills models

- Physics
- 2017

A bstractIn recent years the complex Langevin method (CLM) has proven a powerful method in studying statistical systems which suffer from the sign problem. Here we show that it can also be applied to…

### Higher Order Terms in the Improved Mean Field Approximation for the IIB Matrix Model and the Emergence of Four-Dimensional Space-Time

- Physics
- 2006

The spontaneous breakdown of SO(10) symmetry in the IIB matrix model has been studied using the improved mean field approximation (IMFA). In this report, the eighth-order contribution to the improved…