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 …
Engineering high-coherence superconducting qubits
I Siddiqi - Nature Reviews Materials, 2021 - nature.com
Advances in materials science and engineering have played a central role in the
development of classical computers and will undoubtedly be critical in propelling the …
development of classical computers and will undoubtedly be critical in propelling the …
The future of quantum computing with superconducting qubits
For the first time in history, we are seeing a branching point in computing paradigms with the
emergence of quantum processing units (QPUs). Extracting the full potential of computation …
emergence of quantum processing units (QPUs). Extracting the full potential of computation …
Towards practical quantum computers: Transmon qubit with a lifetime approaching 0.5 milliseconds
C Wang, X Li, H Xu, Z Li, J Wang, Z Yang, Z Mi… - npj Quantum …, 2022 - nature.com
Here we report a breakthrough in the fabrication of a long lifetime transmon qubit. We use
tantalum films as the base superconductor. By using a dry etching process, we obtained …
tantalum films as the base superconductor. By using a dry etching process, we obtained …
New material platform for superconducting transmon qubits with coherence times exceeding 0.3 milliseconds
The superconducting transmon qubit is a leading platform for quantum computing and
quantum science. Building large, useful quantum systems based on transmon qubits will …
quantum science. Building large, useful quantum systems based on transmon qubits will …
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 …
Exploiting dynamic quantum circuits in a quantum algorithm with superconducting qubits
To date, quantum computation on real, physical devices has largely been limited to simple,
time-ordered sequences of unitary operations followed by a final projective measurement …
time-ordered sequences of unitary operations followed by a final projective measurement …
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 …
Challenges and opportunities of near-term quantum computing systems
The concept of quantum computing has inspired a whole new generation of scientists,
including physicists, engineers, and computer scientists, to fundamentally change the …
including physicists, engineers, and computer scientists, to fundamentally change the …
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 …