Millisecond coherence in a superconducting qubit
Improving control over physical qubits is a crucial component of quantum computing
research. Here we report a superconducting fluxonium qubit with uncorrected coherence …
research. Here we report a superconducting fluxonium qubit with uncorrected coherence …
Reducing unitary and spectator errors in cross resonance with optimized rotary echoes
N Sundaresan, I Lauer, E Pritchett, E Magesan… - PRX Quantum, 2020 - APS
We present an improvement to the cross resonance gate realized with the addition of
resonant, target rotary pulses. These pulses, applied directly to the target qubit, are …
resonant, target rotary pulses. These pulses, applied directly to the target qubit, are …
Silicon qubit fidelities approaching incoherent noise limits via pulse engineering
Spin qubits created from gate-defined silicon metal–oxide–semiconductor quantum dots are
a promising architecture for quantum computation. The high single qubit fidelities possible in …
a promising architecture for quantum computation. The high single qubit fidelities possible in …
Scalable randomized benchmarking of quantum computers using mirror circuits
The performance of quantum gates is often assessed using some form of randomized
benchmarking. However, the existing methods become infeasible for more than …
benchmarking. However, the existing methods become infeasible for more than …
Practical guide for building superconducting quantum devices
Quantum computing offers a powerful new paradigm of information processing that has the
potential to transform a wide range of industries. In the pursuit of the tantalizing promises of …
potential to transform a wide range of industries. In the pursuit of the tantalizing promises of …
Direct randomized benchmarking for multiqubit devices
Benchmarking methods that can be adapted to multiqubit systems are essential for
assessing the overall or “holistic” performance of nascent quantum processors. The current …
assessing the overall or “holistic” performance of nascent quantum processors. The current …
Diabatic gates for frequency-tunable superconducting qubits
We demonstrate diabatic two-qubit gates with Pauli error rates down to 4.3 (2)× 10-3 in as
fast as 18 ns using frequency-tunable superconducting qubits. This is achieved by …
fast as 18 ns using frequency-tunable superconducting qubits. This is achieved by …
Benchmarking the noise sensitivity of different parametric two-qubit gates in a single superconducting quantum computing platform
The possibility to utilize different types of two-qubit gates on a single quantum computing
platform adds flexibility in the decomposition of quantum algorithms. A larger hardware …
platform adds flexibility in the decomposition of quantum algorithms. A larger hardware …
[HTML][HTML] Randomized benchmarking with gate-dependent noise
JJ Wallman - Quantum, 2018 - quantum-journal.org
We analyze randomized benchmarking for arbitrary gate-dependent noise and prove that
the exact impact of gate-dependent noise can be described by a single perturbation term …
the exact impact of gate-dependent noise can be described by a single perturbation term …
Quantum simulation of dissipative collective effects on noisy quantum computers
Dissipative collective effects are ubiquitous in quantum physics and their relevance ranges
from the study of entanglement in biological systems to noise mitigation in quantum …
from the study of entanglement in biological systems to noise mitigation in quantum …