The optimization landscape of hybrid quantum–classical algorithms: From quantum control to NISQ applications

X Ge, RB Wu, H Rabitz - Annual Reviews in Control, 2022 - Elsevier
This review investigates the landscapes of hybrid quantum–classical optimization algorithms
that are prevalent in many rapidly develo** quantum technologies, where the objective …

Universal quantum control through deep reinforcement learning

MY Niu, S Boixo, VN Smelyanskiy, H Neven - npj Quantum Information, 2019 - nature.com
Emerging reinforcement learning techniques using deep neural networks have shown great
promise in control optimization. They harness non-local regularities of noisy control …

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 …

GRAPE optimization for open quantum systems with time-dependent decoherence rates driven by coherent and incoherent controls

VN Petruhanov, AN Pechen - Journal of Physics A: Mathematical …, 2023 - iopscience.iop.org
Abstract The GRadient Ascent Pulse Engineering (GRAPE) method is widely used for
optimization in quantum control. GRAPE is gradient search method based on exact …

Learning robust and high-precision quantum controls

RB Wu, H Ding, D Dong, X Wang - Physical Review A, 2019 - APS
Robust and high-precision quantum control is extremely important but challenging for the
functionalization of scalable quantum computation. In this paper, we show that this hard …

Optimization landscape of quantum control systems

X Ge, R Wu, H Rabitz - Complex System Modeling and …, 2021 - ieeexplore.ieee.org
Optimization is ubiquitous in the control of quantum dynamics in atomic, molecular, and
optical systems. The ease or difficulty of finding control solutions, which is practically crucial …

Robust single-qubit gates by composite pulses in three-level systems

ZC Shi, HN Wu, LT Shen, J Song, Y **a, XX Yi… - Physical Review A, 2021 - APS
Composite pulses are an efficient tool for robust quantum control. In this work, we derive the
form of the composite pulse sequence to implement robust single-qubit gates in a three-level …

Robust learning control design for quantum unitary transformations

C Wu, B Qi, C Chen, D Dong - IEEE transactions on cybernetics, 2016 - ieeexplore.ieee.org
Robust control design for quantum unitary transformations has been recognized as a
fundamental and challenging task in the development of quantum information processing …

Statistically characterizing robustness and fidelity of quantum controls and quantum control algorithms

I Khalid, CA Weidner, EA Jonckheere, SG Shermer… - Physical Review A, 2023 - APS
Robustness of quantum operations or controls is important to build reliable quantum
devices. The robustness-infidelity measure (RIM p) is introduced to statistically quantify in a …

Generating a control sequence for quantum control

IN Hincks, CE Granade, TW Borneman… - US Patent …, 2020 - Google Patents
In some aspects, a control system interacts with a quantum system. In some instances, the
quantum system includes qubits that respond to a control signal generated by the control …