arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.02560hep-thmath.MG
收藏

高维球面packing与模bootstrap

High-dimensional sphere packing and the modular bootstrap

Nima Afkhami-Jeddi, Henry Cohn, Thomas Hartman, David de Laat, Amirhossein Tajdini

摘要:

我们进行了数值研究的无旋模bootstrap的共形场论与当前代数$U(1)^c \times U(1)^c$,或等价的线性规划界球包装$2c$维。我们给出了一个更详细的图片有限$c$的行为比以前可用的,我们推断为$c \to \infty$。我们的外推表明,在高维度的球堆积密度边界的指数改善。此外,我们研究这些界限时,可以紧。除了已知的情况下$c=1/2$,$4$,和$12$和固定的情况下$c=1$,我们的计算数值上排除了尖锐的边界为所有其他$c<90$,通过结合模块引导与线性规划界的球形码。

英文摘要:

We carry out a numerical study of the spinless modular bootstrap for conformal field theories with current algebra $U(1)^c \times U(1)^c$, or equivalently the linear programming bound for sphere packing in $2c$ dimensions. We give a more detailed picture of the behavior for finite $c$ than was previously available, and we extrapolate as $c \to \infty$. Our extrapolation indicates an exponential improvement for sphere packing density bounds in high dimensions. Furthermore, we study when these bounds can be tight. Besides the known cases $c=1/2$, $4$, and $12$ and the conjectured case $c=1$, our calculations numerically rule out sharp bounds for all other $c<90$, by combining the modular bootstrap with linear programming bounds for spherical codes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑