Author

Wei Zi

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Preprint Aug 2026

Efficient Depth--Ancilla Tradeoffs for Hamming Weight Computation and Symmetric Boolean Functions

This work studies the depth-ancilla tradeoffs of Hamming weight computation under two qubit connectivity models, all-to-all and two-dimensional nearest-neighbor square grid (2D), in both the standard and dynamic circuit models.

Wei Zi, Pei Yuan, Jun-Hong Nie et al. · 0 citations

Preprint Aug 2026

Quantum Circuit for General Unitary: Improved T-count via Block Flattening and Dilation

A Clifford+T quantum circuit construction that approximately implements any classically specified unitary to within error $\epsilon$ and achieves a worst-case $T$-count with leading exponential scaling of $2^{5n/4}$ whenever $\log(1/\epsilon)=\operatorname{poly}(n)$.

Pei Yuan, Sheng-Yu Zhang, Wei Zi · 1 citation