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quant-ph2026
Correlations decide a shallow-circuit advantage
Zijian Gong, Zhaobin Lyu, Jingjing Hu +2
Quantum computers are claimed to produce samples ordinary classical computers cannot reproduce. The sharpest such claim known pits constant-depth quantum circuits, given one entang…
quant-ph2026
The wiring sets a phase-blind quantum memory's gap, the weight caps its coherence
Ruini Qian, Zhaobin Lyu, Zelong Yin +3
Engineered dissipation corrects errors, yet a memory's phase decays. What the memory's gap measures is not settled. Here we show that when each jump resets one basis state, the wir…