Yilun Xu

TITAN: A Fast and Distributed Large-Scale Trapped-Ion NISQ Computer

2024

Trapped-Ion (TI) technology offers potential breakthroughs for Noisy Intermediate Scale Quantum (NISQ) computing. TI qubits offer extended coherence times and high gate fidelity, making them appealing for large-scale NISQ computers. Constructing such computers demands a …

Noncommutativity as a Universal Characterization for Enhanced Quantum Metrology

2025 · Physical Review Letters

A central challenge in quantum metrology is to effectively harness quantum resources to surpass classical precision bounds. Although recent studies suggest that the indefinite causal order may enable sensitivities to attain the super-Heisenberg scaling, the …