Hardware evaluation of hybrid quantum spectral mixing under noise and connectivity constraints

Evaluate HQ‑LP‑FNO with its VQC spectral mixer on real quantum hardware and determine whether the representational benefits observed in simulation persist under hardware noise and limited qubit connectivity.

Background

The study provides a noisy‑simulator validation using an ibm_torino‑derived noise model, showing numerical stability across practical shot ranges, but all main training and evaluation were performed in simulation.

To confirm real‑world viability, a hardware study is required to assess whether the observed representational benefits survive device‑level noise and connectivity limitations.

References

Several directions remain open. Finally, evaluation on quantum hardware will be necessary to assess whether any representational benefits survive noise and limited connectivity.

— Hybrid Fourier Neural Operator for Surrogate Modeling of Laser Processing with a Quantum-Circuit Mixer  (2604.04828 - Papierz et al., 6 Apr 2026) in Conclusion (Section 6)