Journal of Physics Complexity

Routing qubits on noisy networks

Claudia Benedetti, Giovanni Ragazzi, Simone Cavazzoni, Paolo Bordone, Matteo G. A. Paris

Published Mar 18, 2026• 0 citations

Abstract

Abstract Robust quantum routing is essential for scalable quantum technologies. This paper investigates the resilience of routing protocols in network architectures designed for perfect, high-fidelity transfer of both classical and quantum information under ideal conditions. We encode information in the position of a quantum walker on a graph, modelling the routing of a generic qubit state from a single input to multiple (orthogonal) outputs. We analyse and assess routing performance in various regimes, evaluating their robustness against static and dynamical noise.

DOI: 10.1088/2632-072x/ae5439

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