We consider n free Majorana fermions probing a SYK system comprising of N Majorana fermions. We solve the full system in deep infrared and in large N (as well as large n ) limit. The essential physics of the SYK system is not affected by the probe Majoranas, except addition of another tower of primaries. The SYK system is seen to induce maximal chaos as well as the whole spectrum of primaries, on to the probe system. The renormalization of soft mode action is computed. We comment on features in common with Hawking radiation.

中文翻译：

---

霍金辐射的简单模型

我们考虑 n 个自由马约拉纳费米子探测由 N 个马约拉纳费米子组成的 SYK 系统。我们解决了深红外和大 N（以及大 n）限制的完整系统。SYK 系统的基本物理特性不受 Majoranas 探测器的影响，除了增加了另一个初级塔。可以看到 SYK 系统在探测系统上引起最大混沌以及整个原色谱。计算软模式作用的重整化。我们评论与霍金辐射的共同特征。