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 …

Shortcuts to adiabaticity: Concepts, methods, and applications

D Guéry-Odelin, A Ruschhaupt, A Kiely… - Reviews of Modern …, 2019 - APS
Shortcuts to adiabaticity (STA) are fast routes to the final results of slow, adiabatic changes
of the controlling parameters of a system. The shortcuts are designed by a set of analytical …

Time-dependent Markovian quantum master equation

R Dann, A Levy, R Kosloff - Physical Review A, 2018 - APS
We construct a quantum Markovian master equation for a driven system coupled to a
thermal bath. The derivation utilizes an explicit solution of the propagator of the driven …

Unitary quantum perceptron as efficient universal approximator (a)

E Torrontegui, JJ García-Ripoll - Europhysics Letters, 2019 - iopscience.iop.org
We demonstrate that it is possible to implement a quantum perceptron with a sigmoid
activation function as an efficient, reversible many-body unitary operation. When inserted in …

Simulating Markovian open quantum systems using higher-order series expansion

X Li, C Wang - arxiv preprint arxiv:2212.02051, 2022 - arxiv.org
We present an efficient quantum algorithm for simulating the dynamics of Markovian open
quantum systems. The performance of our algorithm is similar to the previous state-of-the-art …

Focus on shortcuts to adiabaticity

A Del Campo, K Kim - New Journal of Physics, 2019 - iopscience.iop.org
Shortcuts to Adiabaticity (STA) constitute driving schemes that provide an alternative to
adiabatic protocols to control and guide the dynamics of classical and quantum systems …

Shortcuts to adiabaticity in driven open quantum systems: Balanced gain and loss and non-Markovian evolution

S Alipour, A Chenu, AT Rezakhani, A del Campo - Quantum, 2020 - quantum-journal.org
A universal scheme is introduced to speed up the dynamics of a driven open quantum
system along a prescribed trajectory of interest. This framework generalizes counterdiabatic …

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 …

[HTML][HTML] Quantum control based on machine learning in an open quantum system

YX Zeng, J Shen, SC Hou, T Gebremariam, C Li - Physics Letters A, 2020 - Elsevier
Designing robust control schemes in n-level open quantum system is significant for quantum
computation. Here, we investigate two quantum control strategies based on supervised …

Exact classical noise master equations: Applications and connections

A Kiely - Europhysics Letters, 2021 - iopscience.iop.org
All quantum systems are subject to noise and imperfections due to stray fields,
inhomogeneities or drifting experimental controls. An understanding of the effects of noise …