The distribution of the quantum states to remote receivers is an indispensable technology in quantum communication, quantum networks, and quantum information processing. Perfect distribution does not allow any quantum information loss of the distributed quantum state. Quantum telecloning, which is made up of quantum cloning and quantum teleportation, is a remote quantum information distribution protocol. Here, we experimentally demonstrate unconditional $1\to 3$ quantum telecloning of coherent states, and the fidelities of the cloned states are $0.64\pm 0.01, 0.64\pm 0.01$, and $0.49\pm 0.01$, respectively. No information about the unknown state is lost during the telecloning process by exploiting the quadripartite entangled modes as an auxiliary resource. Deterministic $1\to 3$ quantum telecloning has great potential for applications in advanced quantum technology.

中文翻译：

---

1→3连续可变量子远程克隆演示

将量子态分布到远程接收器是量子通信、量子网络和量子信息处理中不可或缺的技术。完美分布不允许分布式量子态的任何量子信息丢失。量子远程克隆由量子克隆和量子隐形传态组成，是一种远程量子信息分发协议。在这里，我们通过实验证明了无条件$1\to 3$ 相干态的量子远程克隆，克隆态的保真度为 $0.64\pm 0.01, 0.64\pm 0.01$， 和 $0.49\pm 0.01$， 分别。通过利用四方纠缠模式作为辅助资源，在远程克隆过程中不会丢失有关未知状态的信息。确定性的$1\to 3$ 量子远程克隆在先进量子技术中具有巨大的应用潜力。