论文标题
2D类型0b字符串理论的S-Matrix第2部分：D-instanton效应
The S-Matrix of 2D Type 0B String Theory Part 2: D-Instanton Effects
论文作者
论文摘要
我们从世界表的角度研究了D-Instantons对二维类型0B字符串理论中封闭弦散射幅度的影响。我们发现，一对d-instanton和抗D-instanton对封闭的弦弦反射幅度的贡献，并具有适当的轮廓处方，用于在D-instanton模量空间上进行集成，这与所提出的双重矩阵量子机械师中相应的领先的非扰动校正一致。该分析进一步扩展到在有限温度下定义的热可观察物。通过带电的D-Instantons的测量因子可以理解带电过程中的红外差异，并且可以用时空正则化处理。
We study the effect of D-instantons on closed string scattering amplitudes in the two-dimensional type 0B string theory from the worldsheet perspective. We find that the contribution from a pair of D-instanton and anti-D-instanton to the closed string reflection amplitude, with a suitable contour prescription for the integration over the D-instanton moduli space, agrees with the corresponding leading non-perturbative corrections in the proposed dual matrix quantum mechanics. This analysis is further extended to thermal observables defined at finite temperature. The infrared divergence in charged processes is understood through the measure factor for charged D-instantons, and can be treated with spacetime dimensional regularization.
