Author

Xiao-Ming Sun

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Preprint Oct 2026

Ancilla-free optimal quantum adder

We construct an exact $n$-bit quantum adder with $O(n)$ gates and $O(\log n)$ depth that requires no ancillary qubits. The circuit uses only $X$, CNOT, and Toffoli gates under all-to-all connectivity and is classically reversible. Our construction accelerates the controlled ladder underlying addition. Grouping the data...

Jun-Hong Nie, Jia-Liang Tang, Xiao-Ming Sun et al. · 0 citations

Review Sep 2026

From Bits to Qubits: The Theory and Practice of Quantum Data Encoding

This review provides a comprehensive account of the concepts, algorithms, and practical considerations associated with quantum data encoding, tracing the development from its early conceptual foundations to recent advances, considering commonly used access models, such as quantum state preparation, unitary synthesis, Q...

Xiao-Ming Zhang, Arthur G. Rattew, Bu-Jiao Wu et al. · 2 citations

Jul 2026

QAdapt: A Noise-Adaptive Neural Pre-Decoding Framework for Quantum Error Correction

QAdapt is presented, a noise-adaptive neural pre-decoding framework for surface-code quantum error correction that captures local spatiotemporal correlations in syndrome data, sequentially adapting to evolving noise conditions while mitigating catastrophic forgetting, and forwards the residual syndrome to a conventiona...

Ran Miao, Rui Luo, Xiaohan Shan et al. · arXiv.org · 0 citations