Speaker
Mr
Naoyuki Yamamori
(SOKENDAI)
Description
The IKKT matrix model is the most promising candidate of a non-perturbative formulation of superstring theory. Recently it has been proposed to introduce the Lorentz invariant mass term as a regularization. This model has SO(9,1) Lorentz symmetry, and a partition function diverges due to the non-compactness of the volume of the Lorentz group. In this study, we have done the analytical calculation at large D. In the case with N=2, there are three classical solutions in total. We clarified the physical meaning of the solutions and a phase diagram of the theory by doing a 1/D expansion around each solution.
