论文标题
超对称和开放式弦
Misaligned Supersymmetry and Open Strings
论文作者
论文摘要
对非对称弦理论的研究正在在弦乐景观的一个重要角落脱落，并最终可能解释了为什么到目前为止，我们还没有在宇宙中观察到超对称性。我们回顾封闭理论中未对准的超对称性如何导致玻色子和费米子之间的取消。然后，我们证明，通过研究将抗D $ p $ brane放置在II型字符串理论中的O $ p $平面上的抗D $ p $ brane，从而进行了同样的取消。 \ emph {不同的能量水平的玻色子和费物之间的取消对超对称性不一致，以使得平均数量的状态数以$ \ mathrm {e}^{e}^{c _ {c _ {c _ { $ c _ {\ mathrm {eff}} <c _ {\ mathrm {tot}} $，其中$ c _ {\ mathrm {tot}} $是反hagedorn温度。我们证明了先前猜想的完整取消，即我们证明了$ c _ {\ mathrm {eff}}} = 0 $，用于大量的模型。
The study of non-supersymmetric string theories is shedding light on an important corner of the string landscape and might ultimately explain why, so far, we did not observe supersymmetry in our universe. We review how misaligned supersymmetry in closed-string theories leads to a cancellation between bosons and fermions even in non-supersymmetric string theories. We then show that the same cancellation takes place for open strings by studying an anti-D$p$-brane placed on top of an O$p$-plane in type II string theory. Misaligned supersymmetry consists in cancellations between bosons and fermions at \emph{different} energy levels, in such a way that the averaged number of states grows at a rate dominated by a factor $\mathrm{e}^{C_{\mathrm{eff}}\sqrt{n}}$, with $C_{\mathrm{eff}}<C_{\mathrm{tot}}$, where $C_{\mathrm{tot}}$ is the inverse Hagedorn temperature. We prove the previously conjectured complete cancellation, i.e. we prove that $C_{\mathrm{eff}}=0$, for a vast class of models.
