Author

Xiao-Ming Sun

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Preprint Oct 2026

Nearly Optimal T-Count for Symmetry-Based Quantum State Purification

Protecting quantum information from noise is essential for reliable quantum computation and quantum memories. Quantum state purification addresses this challenge by processing multiple noisy copies of an unknown quantum state to produce an output state of higher fidelity. Here we establish nearly tight upper and lower...

Jia-Liang Tang, Jun-Hong Nie, Ke-Ming He et al. · 0 citations