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 …

Learning quantum systems

V Gebhart, R Santagati, AA Gentile, EM Gauger… - Nature Reviews …, 2023 - nature.com
The future development of quantum technologies relies on creating and manipulating
quantum systems of increasing complexity, with key applications in computation, simulation …

Quantum collision models: Open system dynamics from repeated interactions

F Ciccarello, S Lorenzo, V Giovannetti, GM Palma - Physics Reports, 2022 - Elsevier
We present an extensive introduction to quantum collision models (CMs), also known as
repeated interactions schemes: a class of microscopic system–bath models for investigating …

Dynamical maps beyond Markovian regime

D Chruściński - Physics Reports, 2022 - Elsevier
Quantum dynamical maps provide suitable mathematical representation of quantum
evolutions. When representing quantum states by density operators, the evident …

[HTML][HTML] Detecting crosstalk errors in quantum information processors

M Sarovar, T Proctor, K Rudinger, K Young… - Quantum, 2020 - quantum-journal.org
Crosstalk occurs in most quantum computing systems with more than one qubit. It can cause
a variety of correlated and nonlocal $\textit {crosstalk errors} $ that can be especially harmful …

Quantum stochastic processes and quantum non-Markovian phenomena

S Milz, K Modi - PRX Quantum, 2021 - APS
The field of classical stochastic processes forms a major branch of mathematics. Stochastic
processes are, of course, also very well studied in biology, chemistry, ecology, geology …

Unifying quantum and classical speed limits on observables

LP García-Pintos, SB Nicholson, JR Green… - Physical Review X, 2022 - APS
The presence of noise or the interaction with an environment can radically change the
dynamics of observables of an otherwise isolated quantum system. We derive a bound on …

Open quantum system dynamics and the mean force Gibbs state

AS Trushechkin, M Merkli, JD Cresser… - AVS Quantum Science, 2022 - pubs.aip.org
The dynamical convergence of a system to the thermal distribution, or Gibbs state, is a
standard assumption across all of the physical sciences. The Gibbs state is determined just …

Demonstration of non-Markovian process characterisation and control on a quantum processor

GAL White, CD Hill, FA Pollock, LCL Hollenberg… - Nature …, 2020 - nature.com
In the scale-up of quantum computers, the framework underpinning fault-tolerance generally
relies on the strong assumption that environmental noise affecting qubit logic is uncorrelated …

Non-Markovian quantum process tomography

GAL White, FA Pollock, LCL Hollenberg, K Modi… - PRX Quantum, 2022 - APS
Characterization protocols have so far played a central role in the development of noisy
intermediate-scale quantum (NISQ) computers capable of impressive quantum feats. This …