Author

Ahatesham Bhuiyan

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Jul 2026

Hardware Robustness of Sample-Based Quantum Diagonalization

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.

Ahatesham Bhuiyan, Cheng Chu, Qian Lou et al. · arXiv.org · 1 citation

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-cu...

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