Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe
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 …
fields that accomplish given tasks in the operation of a quantum device in the best way …
Shortcuts to adiabaticity: Concepts, methods, and applications
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 …
of the controlling parameters of a system. The shortcuts are designed by a set of analytical …
Demonstration of quantum brachistochrones between distant states of an atom
MR Lam, N Peter, T Groh, W Alt, C Robens… - Physical Review X, 2021 - APS
Transforming an initial quantum state into a target state through the fastest possible route—a
quantum brachistochrone—is a fundamental challenge for many technologies based on …
quantum brachistochrone—is a fundamental challenge for many technologies based on …
Quantum state control of a bose-einstein condensate in an optical lattice
N Dupont, G Chatelain, L Gabardos, M Arnal, J Billy… - PRX Quantum, 2021 - APS
We report on the efficient design of quantum optimal-control protocols to manipulate the
motional states of an atomic Bose-Einstein condensate (BEC) in a one-dimensional optical …
motional states of an atomic Bose-Einstein condensate (BEC) in a one-dimensional optical …
Fast manipulation of Bose–Einstein condensates with an atom chip
R Corgier, S Amri, W Herr, H Ahlers… - New Journal of …, 2018 - iopscience.iop.org
We present a detailed theoretical analysis of the implementation of shortcut-to-adiabaticity
protocols for the fast transport of neutral atoms with atom chips. The objective is to engineer …
protocols for the fast transport of neutral atoms with atom chips. The objective is to engineer …
Optimal control of the transport of Bose-Einstein condensates with atom chips
Abstract Using Optimal Control Theory (OCT), we design fast ramps for the controlled
transport of Bose-Einstein condensates with atom chips' magnetic traps. These ramps are …
transport of Bose-Einstein condensates with atom chips' magnetic traps. These ramps are …
Closed-loop optimization of fast trapped-ion shuttling with sub-quanta excitation
JD Sterk, H Coakley, J Goldberg, V Hietala… - npj Quantum …, 2022 - nature.com
Shuttling ions at high speed and with low motional excitation is essential for realizing fast
and high-fidelity algorithms in many trapped-ion-based quantum computing architectures …
and high-fidelity algorithms in many trapped-ion-based quantum computing architectures …
Connection between inverse engineering and optimal control in shortcuts to adiabaticity
We consider fast high-fidelity quantum control by using a shortcut to adiabaticity (STA)
technique and optimal control theory (OCT). Three specific examples, including expansion …
technique and optimal control theory (OCT). Three specific examples, including expansion …
Inverse engineering for fast transport and spin control of spin-orbit-coupled Bose-Einstein condensates in moving harmonic traps
We investigate fast transport and spin manipulation of tunable spin-orbit-coupled Bose-
Einstein condensates in a moving harmonic trap. Motivated by the concept of shortcuts to …
Einstein condensates in a moving harmonic trap. Motivated by the concept of shortcuts to …
Smooth bang-bang shortcuts to adiabaticity for atomic transport in a moving harmonic trap
Bang-bang control is often used to implement a minimal-time shortcut to adiabaticity for
efficient transport of atoms in a moving harmonic trap. However, drastic changes of the on-off …
efficient transport of atoms in a moving harmonic trap. However, drastic changes of the on-off …