Flexible grid wavelength division multiplexing is a powerful tool in lightwave communications to maximize spectral efficiency. In the emerging field of quantum networking, the need for effective resource provisioning is particularly acute, given the generally lower power levels, higher sensitivity to loss, and inapplicability of optical detection and retransmission. In this letter, we leverage flex grid technology to demonstrate reconfigurable distribution of quantum entanglement in a four-user tabletop network. By adaptively partitioning bandwidth with a single wavelength-selective switch, we successfully equalize two-party coincidence rates that initially differ by over two orders of magnitude. Our scalable approach introduces loss that is fixed with the number of users, offering a practical path for the establishment and management of quality-of-service guarantees in large quantum networks.

中文翻译：

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量子网络中纠缠分布的自适应带宽管理

灵活的网格波分复用是光波通信中使频谱效率最大化的强大工具。在新兴的量子网络领域中，考虑到通常较低的功率水平，对损耗的较高敏感性以及光学检测和重新传输的不适用性，对有效资源配置的需求尤为迫切。在这封信中，我们利用弹性网格技术来演示四用户桌面网络中量子纠缠的可重新配置分布。通过使用单个波长选择开关对带宽进行自适应划分，我们成功地均衡了最初相差两个数量级以上的两方重合率。我们的可扩展方法带来的损失取决于用户数量，