Claudia Benedetti, Giovanni Ragazzi, Simone Cavazzoni, Paolo Bordone, Matteo G. A. Paris
2026.1.21Journal of Physics-Complexity
tlooto Summary
This paper encoding 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, and evaluating their robustness against static and dynamical noise.
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.
Citation format
BENEDETTI, Claudia, et al. Routing qubits on noisy networks [preprint]. arXiv, 2026. arXiv:2601.14824.