Awesome Quantum Computing Experiments: Benchmarking Experimental Progress Towards Fault-Tolerant Quantum Computation

Abstract

Achieving fault-tolerant quantum computation (FTQC) demands simultaneous progress in physical qubit performance and quantum error correction (QEC). This work reviews and benchmarks experimental advancements towards FTQC across leading platforms, including trapped ions, superconducting circuits, neutral atoms, NV centers, and semiconductors. We analyze key physical metrics like coherence times, entanglement error, and system size (qubit count), fitting observed exponential trends to characterize multi-order-of-magnitude improvements over the past two decades. At the logical level, we survey the implementation landscape of QEC codes, tracking realized parameters $[[n, k, d]]$ and complexity from early demonstrations to recent surface and color code experiments. Synthesizing these physical and logical benchmarks reveals substantial progress enabled by underlying hardware improvements, while also outlining persistent challenges towards scalable FTQC. The experimental databases and analysis code underpinning this review are publicly available at https://github.com/francois-marie/awesome-quantum-computing-experiments.