行列模型に於ける有効相互作用とオリエンティフォールディング 吉岡礼治 (大阪市立大学) 共同研究者： 糸山浩司(大阪市立大学)
Introduction 16+16 susy 8+8 susy closed open+closed orientable Type IIB superstrings Type I superstrings 16+16 susy closed orientable 8+8 susy open+closed unorientable Reduced model Matrix Orientifolding IIB Matrix Model USp Matrix Model [Ishibashi-Kawai-Kitazawa-Tsuchiya] [Itoyama-Tokura]
IIB Matrix Model Dimensional reduction of N=1, D=4 supersymmetric Yang-Mills theory to 0-dim. where This model has 16+16 supersymmeties
From U To USp USp projector :
8+8 susy We choose Our expression of is USp(2k) Matrix Model
1-loop effective action for matrix model [Aoki-Iso-Kawai-Kitazawa-Tada] Gauge fixing
IIB 1-loop effective action 8-fold bond 16-fold bond
USp Adj. Asym. asym. 行列の固有値＝時空点 adj.
USp asym. adj.
USp 1-loop effective action
USp(2) case = SU(2) The background spacetime is restricted to the adjoint directions. asym. adj.
2-points part SU(k) USp(2k) and so on
Summery USp行列模型とＩＩＢ行列模型の有効相互作用の構造を比較した。 USp行列模型では時空点間に2種類の相互作用が 複雑な形で存在する。