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arXiv 2409.12911hep-th
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$\mathcal{N} = 4$ SYM中具有BPS束缚态的全息关联函数

Holographic correlators with BPS bound states in $\mathcal{N} = 4$ SYM

Francesco Aprile, Stefano Giusto, Rodolfo Russo

AI总结:

在大$N$和大't Hooft耦合下,利用全息规定计算了$\mathcal{N}=4$ SYM中含单、双粒子$1/2$-BPS算符的4点关联函数,给出了精确至$\mathcal{O}(1/N^4)$的显式表达式,并在Mellin空间中得到了紧凑形式。

摘要:

我们在大't Hooft耦合和大$N$极限下,计算了$\mathcal{N} = 4$ $SU(N)$ Super-Yang-Mills中包含单粒子和双粒子$1/2$-BPS算符的4点关联函数。特别地,对于由应力张量多重态构成的两个双粒子算符和两个单粒子算符的最轻关联函数,我们给出了精确至$\mathcal{O}(1/N^4)$阶的显式表达式。我们的推导利用了应用于渐近AdS$_5\times$S$^5$几何的全息规定,该几何描述了多重引力子算符的相干叠加。最终结果可用标准D函数的自然推广来表示,并在Mellin空间中具有紧凑形式。我们计算的关联符是两个插入算符为多粒子的更一般关联符类中最简单的情况,这些关联符可用相同方法推导,表明此结构具有普遍性。

英文摘要:

We compute 4-point correlators in $\mathcal{N} = 4$ $SU(N)$ Super-Yang-Mills with both single and double-particle $1/2$-BPS operators in the regime of large 't Hooft coupling and large $N$. In particular we give explicit expressions up to $\mathcal{O}(1/N^4)$ for the lightest correlator with two double-particle and two single-particle operators built out of the stress-tensor multiplet. Our derivation makes use of the general holographic prescription applied to an asymptotically AdS$_5\times$S$^5$ geometry that describes a coherent superposition of multi-graviton operators. The final result can be written in terms of a natural generalisation of the standard D-functions and takes a compact form in Mellin space. The correlator we compute here is the simplest of a more general class of correlators where two inserted operators are multi-particles. These can be derived with the same approach, suggesting that the structure found here is general.

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