标题： 紧致化旋转膜在矩阵模型中的情况以及向一环激发谱 显示英文标题

标题： Compactified rotating branes in the matrix model, and excitation spectrum towards one loop

摘要： 我们研究IIB矩阵模型中R^4 x K的紧化膜解，并显式地获得了计算一环有效作用量所需的玻色子和费米子涨落谱。 我们验证了对于R^4 x T^2，一环贡献是紫外有限的，而对于R^3 x S^1，具有超对称性。 在T^2上有通量的情况下，更高阶的Kaluza-Klein模式显示出一个间隙，并讨论了与稳定性相关的问题。 显示英文摘要

摘要： We study compactified brane solutions of type R^4 x K in the IIB matrix model, and obtain explicitly the bosonic and fermionic fluctuation spectrum required to compute the one-loop effective action. We verify that the one-loop contributions are UV finite for R^4 x T^2, and supersymmetric for R^3 x S^1. The higher Kaluza-Klein modes are shown to have a gap in the presence of flux on T^2, and potential problems concerning stability are discussed.