Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe

CP Koch, U Boscain, T Calarco, G Dirr… - EPJ Quantum …, 2022 - epjqt.epj.org
Quantum optimal control, a toolbox for devising and implementing the shapes of external
fields that accomplish given tasks in the operation of a quantum device in the best way …

From pulses to circuits and back again: A quantum optimal control perspective on variational quantum algorithms

AB Magann, C Arenz, MD Grace, TS Ho, RL Kosut… - PRX Quantum, 2021 - APS
The last decade has witnessed remarkable progress in the development of quantum
technologies. Although fault-tolerant devices likely remain years away, the noisy …

Integrated tool set for control, calibration, and characterization of quantum devices applied to superconducting qubits

N Wittler, F Roy, K Pack, M Werninghaus, AS Roy… - Physical Review …, 2021 - APS
Efforts to scale-up quantum computation have reached a point where the principal limiting
factor is not the number of qubits, but the entangling gate infidelity. However, the highly …

Progress toward favorable landscapes in quantum combinatorial optimization

J Lee, AB Magann, HA Rabitz, C Arenz - Physical Review A, 2021 - APS
The performance of variational quantum algorithms relies on the success of using quantum
and classical computing resources in tandem. Here, we study how these quantum and …

[HTML][HTML] Controlling NMR spin systems for quantum computation

JA Jones - Progress in Nuclear Magnetic Resonance …, 2024 - Elsevier
Nuclear magnetic resonance is arguably both the best available quantum technology for
implementing simple quantum computing experiments and the worst technology for building …

Learning how to dynamically decouple by optimizing rotational gates

A Rahman, DJ Egger, C Arenz - Physical Review Applied, 2024 - APS
Current quantum computers suffer from noise that stems from interactions between the
quantum system that constitutes the quantum device and its environment. These interactions …

Model-free distortion canceling and control of quantum devices

AF Fouad, A Youssry, A El-Rafei… - Quantum Science and …, 2024 - iopscience.iop.org
Quantum devices need precise control to achieve their full capability. In this work, we
address the problem of controlling closed quantum systems, tackling two main issues. First …

Fast generation of entanglement between coupled spins using optimization and deep learning methods

D Koutromanos, D Stefanatos… - EPJ Quantum …, 2024 - epjqt.epj.org
Coupled spins form composite quantum systems which play an important role in many
quantum technology applications, with an essential task often being the efficient generation …

Experimental graybox quantum system identification and control

A Youssry, Y Yang, RJ Chapman, B Haylock… - npj Quantum …, 2024 - nature.com
Understanding and controlling engineered quantum systems is key to develo** practical
quantum technology. However, given the current technological limitations, such as …

Assessing three closed-loop learning algorithms by searching for high-quality quantum control pulses

X Yang, C Arenz, I Pelczer, QM Chen, RB Wu, X Peng… - Physical Review A, 2020 - APS
Designing a high-quality control is crucial for reliable quantum computation. Among the
existing approaches, closed-loop leaning control is an effective choice. Its efficiency …