Speaker
Mr
Yuta Ito
(SOKENDAI)
Description
The type IIB matrix model is conjectured to be a nonperturbative formulation of superstring theory.In 2011, the Lorentzian version of the model was studied for the first time by Monte Carlo simulation, and it was shown that (3+1)D expanding universe emerges from (9+1)D space-time predicted by superstring theory. Recently, a simplified model that describes the early time behaviors of the original model was studied with matrix size up to N=64, and it was suggested that the expansion of the (3+1)D universe is actually exponential, which is reminiscent of the inflation.
In this work, we confirm this exponential expansion by simulating the simplified model with much larger matrix size up to N=512 using a large-scale parallel computer.
Primary author
Mr
Yuta Ito
(SOKENDAI)
Co-authors
Prof.
Asato Tsuchiya
(Shizuoka University)
Prof.
Jun Nishimura
(KEK, SOKENDAI)
