The ability to realize high-fidelity quantum communication is one of the many facets required to build generic quantum computing devices. In addition to quantum processing, sensing, and storage, transferring the resulting quantum states demands a careful design that finds no parallel in classical communication. Existing experimental demonstrations of quantum information transfer in solid-state quantum systems are largely confined to small chains with few qubits, often relying upon non-generic schemes. Here, by using a superconducting quantum circuit featuring thirty-six tunable qubits, accompanied by general optimization procedures deeply rooted in overcoming quantum chaotic behavior, we demonstrate a scalable protocol for transferring few-particle quantum states in a two-dimensional quantum network. These include single-qubit excitation, two-qubit entangled states, and two excitations for which many-body effects are present. Our approach, combined with the quantum circuit’s versatility, paves the way to short-distance quantum communication for connecting distributed quantum processors or registers, even if hampered by inherent imperfections in actual quantum devices.

实现高保真量子通信的能力是构建通用量子计算设备所需的众多方面之一。除了量子处理、传感和存储之外，传输所产生的量子态还需要仔细的设计，这在经典通信中是无可比拟的。固态量子系统中量子信息传输的现有实验演示主要局限于具有很少量子位的小链，通常依赖于非通用方案。在这里，通过使用具有 36 个可调谐量子位的超导量子电路，并伴随着根植于克服量子混沌行为的通用优化程序，我们展示了一种在二维量子网络中传输少粒子量子态的可扩展协议。这些包括单量子位激发、两个量子位纠缠态以及存在多体效应的两个激发。我们的方法与量子电路的多功能性相结合，为连接分布式量子处理器或寄存器的短距离量子通信铺平了道路，即使受到实际量子设备固有缺陷的阻碍。