Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe
arXiv:2205.12110 · doi:10.1140/epjqt/s40507-022-00138-x
Abstract
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 possible, has evolved into one of the cornerstones for enabling quantum technologies. The last few years have seen a rapid evolution and expansion of the field. We review here recent progress in our understanding of the controllability of open quantum systems and in the development and application of quantum control techniques to quantum technologies. We also address key challenges and sketch a roadmap for future developments.
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- Iterative Power Algorithm for Global Optimization with Quantics Tensor Trains
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- Effective adiabatic control of a decoupled Hamiltonian obtained by rotating wave approximation
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- Connection between inverse engineering and optimal control in shortcuts to adiabaticity
- Optimization of Broadband -type Quantum Memory Using Gaussian Pulses
- Evolutionary computation for adaptive quantum device design
- Quantum control beyond the adiabatic regime in 2D curved matter-wave guides
- Optimal control and selectivity of qubits in contact with a structured environment
- Combining the synergistic control capabilities of modelling and experiments: illustration of finding a minimum time quantum objective
- qopt: An experiment-oriented Qubit Simulation and Quantum Optimal Control Package
- Macroscopic Hyperpolarization Enhanced with Quantum Optimal Control
- Invariant-based inverse engineering of time-dependent, coupled harmonic oscillators
- A control hardware based on a field programmable gate array for experiments in atomic physics
- High-speed calibration and characterization of superconducting quantum processors without qubit reset
- Optimal quantum channels
- Optimization of Controlled-Z Gate with Data-Driven Gradient Ascent Pulse Engineering in a Superconducting Qubit System
- Dynamical Decomposition of Bilinear Control Systems subject to Symmetries
- Controlling the dynamics of ultracold polar molecules in optical tweezers
- Quantum speed limit and divisibility of the dynamical map
- Generation and storage of spin squeezing via learning-assisted optimal control
- Bang-bang shortcut to adiabaticity in trapped ion quantum simulators
- Optimization schemes for unitary tensor-network circuit
- Optimal control of an inhomogeneous spin ensemble coupled to a cavity
- Quantum computing with superconducting circuits in the picosecond regime
- Fast, high precision dynamics in quantum optimal control theory
- Efficient optimization of state preparation in quantum networks using quantum trajectories
- Drawing together control landscape and tomography principles
- Learning Control of Quantum Systems
- Small time reachable set of bilinear quantum systems
- Simplified landscapes for optimization of shaken lattice interferometry
- Bhatia-Davis formula in the quantum speed limit
- A Projection Operator-based Newton Method for the Trajectory Optimization of Closed Quantum Systems
- Reservoir-engineering shortcuts to adiabaticity
- Optimal Control of Closed Quantum Systems via B-Splines with Carrier Waves
- Continuous quantum gate sets and pulse class meta-optimization
- Universal control of quantum processes using sector-preserving channels
- Time-optimal polarization transfer from an electron spin to a nuclear spin
- Conservation-law-based global bounds to quantum optimal control
- Analysis of lower bounds for quantum control times and their relation to the quantum speed limit
- Controllability of spin-boson systems
- Optical control protocols for high-fidelity spin rotations of single SiV and SnV centers in diamond
- Natural Gradient Optimization for Optical Quantum Circuits
- Quantifying the Unitary Generation of Coherence From Thermal Quantum Systems
- Optimization of Asymmetric Quantum Otto Engine Cycles
- Time-optimal Control of Independent Spin-1/2 Systems under Simultaneous Control
- Realization of universal nonadiabatic geometric control on decoherence-free qubits in the XY model
- Single-tone pulse sequences and robust two-tone shaped pulses for three silicon spin qubits with always-on exchange
- Hybrid Microwave Radiation Patterns for High-Fidelity Quantum Gates with Trapped Ions
- Quantum state smoothing as an optimal estimation problem with three different cost functions
- Speeding Up Particle Slowing using Shortcuts to Adiabaticity
- Trajectory tracking for non-Markovian quantum systems
- QGo: Scalable Quantum Circuit Optimization Using Automated Synthesis
- Conditions allowing error correction in driven qubits
- Short composite rotation robust against two common systematic errors
- Optimal control for feedback cooling in cavityless levitated optomechanics
- Push-Pull Optimization of Quantum Controls
- Quality of the Thermodynamic Uncertainty Relation for Fast and Slow Driving
- Self-consistency of optimizing finite-time Carnot engines with the low-dissipation model
- Information flow and error scaling for fully-quantum control
- Classical and quantum speed limits
- Quantum Distance to Uncontrollability and Quantum Speed Limits
- A greedy reconstruction algorithm for the identification of spin distribution
- Quantum proportional-integral (PI) control
- Coherent control in the ground and optically excited state of an ensemble of erbium dopants
- Strict Positivity and -Majorization
- Numerical Engineering of Robust Adiabatic Operations
- Characterization and tomography of a hidden qubit
- Minimum time control of a pair of two-level quantum systems with opposite drifts
- Robust quantum control for the manipulation of solid-state spins
- Quantum Gates Robust to Secular Amplitude Drifts
- Navigating on Quantum Control Solution Subspaces
- Quantum Pontryagin Principle under Continuous Measurements and Feedback
- Parameterized Hamiltonian simulation using quantum optimal control
- Nonresonant two-level transitions: Lessons from quantum thermodynamics
- Reachability in Infinite Dimensional Unital Open Quantum Systems with Switchable GKS-Lindblad Generators
- Purity Speed Limit of Open Quantum Systems from Magic Subspaces
- Reachable Set Characterization of Open Quantum System by Quantum Speed Limit
- Reinforcement Learning vs. Gradient-Based Optimisation for Robust Energy Landscape Control of Spin-1/2 Quantum Networks
- Scalable quantum control and non-abelian anyon creation in the Kitaev honeycomb model
- Reinforcement Learning Approach to Shortcuts between Thermodynamic States with Extra Constraints
- Local control theory for superconducting qubits
- Algebraic structure of path-independent quantum control
- Extensible circuit-QED architecture via amplitude- and frequency-variable microwaves
- Algorithmic Primitives for Quantum-Assisted Quantum Control
- Reachable Sets from Toy Models to Controlled Markovian Quantum Systems
- Optimization of a quantum control sequence for initializing an NV spin register
- A Scalable Microarchitecture for Efficient Instruction-Driven Signal Synthesis and Coherent Qubit Control
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- Unified trade-off optimization of quantum harmonic Otto engine and refrigerator
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