Author

Lei Jiang

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Jul 2026

CutBackdoor: A Circuit Cut Triggered Backdoor Attack on Variational Quantum Algorithms

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-cut execution.

Ahatesham Bhuiyan, Hoang M. Ngo, Cheng Chu et al. · arXiv.org · 0 citations

Jul 2026

SoK: Adversarial Robustness of the Variational Quantum Eigensolver via Red-Teaming

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