This work analyzes SQD robustness on IBM Heron hardware across shot budgets, layouts, noise mitigation settings, and coupled-cluster singles and doubles amplitudes to identify where SQD provides genuine deployment robustness and where its limits remain.
CutBackdoor is presented, the first parameter-supply-chain backdoor that uses cut circuit execution from CutQC as the deployment-time trigger against VQAs, and poisoned parameters preserve full-circuit validation performance while substantially increasing cut-path reconstruction error under noisy finite-shot circuit-cu...
Ahatesham Bhuiyan, Hoang M. Ngo, Cheng Chu et al.· arXiv.org· 0 citations
Noise-induced attacks that manipulate the Zero-Noise Extrapolation pipeline are the most damaging, followed by the QTrojan circuit-level backdoor, while the QDoor parameter-level backdoor is the least effective, yielding only marginal amplification.
Ahmed Azaz Humdoon, Cheng Chu, Lei Jiang et al.· arXiv.org· 0 citations
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