Quantum-mechanical effects at the macroscopic level were first explored in Josephson-
junction-based superconducting circuits in the 1980s. In recent decades, the emergence of …

Since the first observation of coherent quantum behaviour in a superconducting qubit, now
more than 20 years ago, there have been substantial developments in the field of …

During the last ten years, superconducting circuits have passed from being interesting
physical devices to becoming contenders for near-future useful and scalable quantum …

A quantum system interacts with its environment—if ever so slightly—no matter how much
care is put into isolating it. Therefore, quantum bits undergo errors, putting dauntingly difficult …

The performance of superconducting quantum circuits for quantum computing has advanced
tremendously in recent decades; however, a comprehensive understanding of relaxation …

Amorphous solids show surprisingly universal behaviour at low temperatures. The
prevailing wisdom is that this can be explained by the existence of two-state defects within …

The unique features of quantum theory offer a powerful new paradigm for information
processing. Translating these mathematical abstractions into useful algorithms and …

The performance of superconducting circuits for quantum computing is limited by materials
losses. In particular, coherence times are typically bounded by two-level system (TLS) …

Significant advances in coherence render superconducting quantum circuits a viable
platform for fault-tolerant quantum computing. To further extend capabilities, highly coherent …

Processing at the atomic scale is becoming increasingly critical for state-of-the-art electronic
devices for computing and data storage, but also for emerging technologies such as related …