Scalable low-latency entanglement distribution for distributed quantum computing

Practical distributed quantum computing and error correction require quantum networks with high-qubit-rate, high-fidelity, and low-reconfiguration-latency quantum networks. Unfortunately, current approaches are limited by fundamental constraints: single-channel entanglement rates remain at the MHz scale with millisecond-level reconfiguration, which is insufficient for fault-tolerant distributed quantum computing. Here, we propose a quantum network architecture that leverages a reconfigurable quantum interface to overcome bandwidth and latency constraints. By tuning the frequency and temporal modes of photonic qubits across dense wavelength division multiplexing (DWDM) channels, our protocol achieves an entanglement generation rate of up to 183.4 MHz. Our architecture enables nanosecond-scale network reconfiguration using wavelength-selective, reconfigurable quantum switches with low loss, low infidelity, and high dimensionality. Our architecture is designed for practical distributed quantum computing and error correction, integrating the quantum interface, network switching, circuit compilation, and execution into a unified framework. The proposed architecture is fully compatible with industry-standard DWDM infrastructure, providing a scalable and cost-effective foundation for distributed quantum computing.