Synthesis of Application-Specific Quantum Network-on-Chip

Distributed quantum computing (DQC) enables scalable quantum systems by connecting multiple QPUs, but performance is limited by inter-QPU communication resources such as communication qubits, entanglement generation, and link capacity. This motivates application-specific Quantum NoC (QNoC) design, where the interconnect is tailored to the application workload. We present an automated QNoC synthesis framework for multi-QPU architectures using dedicated communication qubits with LTM interfaces and a silicon-photonic entanglement distribution network (EDN). The flow explores candidate subnet mappings and link configurations, evaluates them through transpilation, and ranks them using a weighted score based on communication usage, SWAP overhead, and execution time. Experiments on benchmark circuits show workloaddependent trade-offs and demonstrate that application-specific QNoC synthesis can reveal useful architectural design insights.