Materials challenges and opportunities for quantum computing hardware
BACKGROUND The past two decades have seen intense efforts aimed at building quantum
computing hardware with the potential to solve problems that are intractable on classical …
computing hardware with the potential to solve problems that are intractable on classical …
Circuit quantum electrodynamics
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 …
junction-based superconducting circuits in the 1980s. In recent decades, the emergence of …
[HTML][HTML] A quantum engineer's guide to superconducting qubits
The aim of this review is to provide quantum engineers with an introductory guide to the
central concepts and challenges in the rapidly accelerating field of superconducting …
central concepts and challenges in the rapidly accelerating field of superconducting …
Quantum information processing and quantum optics with circuit quantum electrodynamics
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 …
more than 20 years ago, there have been substantial developments in the field of …
Surpassing millisecond coherence in on chip superconducting quantum memories by optimizing materials and circuit design
The performance of superconducting quantum circuits for quantum computing has advanced
tremendously in recent decades; however, a comprehensive understanding of relaxation …
tremendously in recent decades; however, a comprehensive understanding of relaxation …
Towards understanding two-level-systems in amorphous solids: insights from quantum circuits
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 …
prevailing wisdom is that this can be explained by the existence of two-state defects within …
Quantum information processing with bosonic qubits in circuit QED
The unique features of quantum theory offer a powerful new paradigm for information
processing. Translating these mathematical abstractions into useful algorithms and …
processing. Translating these mathematical abstractions into useful algorithms and …
Materials loss measurements using superconducting microwave resonators
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) …
losses. In particular, coherence times are typically bounded by two-level system (TLS) …
Correlating decoherence in transmon qubits: Low frequency noise by single fluctuators
We report on long-term measurements of a highly coherent, nontunable superconducting
transmon qubit, revealing low-frequency burst noise in coherence times and qubit transition …
transmon qubit, revealing low-frequency burst noise in coherence times and qubit transition …
Reducing the impact of radioactivity on quantum circuits in a deep-underground facility
As quantum coherence times of superconducting circuits have increased from nanoseconds
to hundreds of microseconds, they are currently one of the leading platforms for quantum …
to hundreds of microseconds, they are currently one of the leading platforms for quantum …