William J. Zeng

Quantum Resources Required to Block-Encode a Matrix of Classical Data

2022 · arXiv (Cornell University)

We provide modular circuit-level implementations and resource estimates for several methods of block-encoding a dense $N\times N$ matrix of classical data to precision $ε$; the minimal-depth method achieves a $T$-depth of $\mathcal{O}{(\log (N/ε))},$ while the …

Low depth algorithms for quantum amplitude estimation

2020 · arXiv (Cornell University)

We design and analyze two new low depth algorithms for amplitude estimation (AE) achieving an optimal tradeoff between the quantum speedup and circuit depth. For $β\in (0,1]$, our algorithms require $N= \tilde{O}( \frac{1}{ ε^{1+β}})$ oracle …

Open hardware solutions in quantum technology

2024 · APL Quantum

Quantum technologies, such as communication, computing, and sensing, offer vast opportunities for advanced research and development. While an open-source ethos currently exists within some quantum technologies, especially in quantum computer programming, we argue that there …