Controlling open quantum systems: tools, achievements, and limitations

CP Koch - Journal of Physics: Condensed Matter, 2016 - iopscience.iop.org
The advent of quantum devices, which exploit the two essential elements of quantum
physics, coherence and entanglement, has sparked renewed interest in the control of open …

Training Schrödinger's cat: Quantum optimal control: Strategic report on current status, visions and goals for research in Europe

SJ Glaser, U Boscain, T Calarco, CP Koch… - The European Physical …, 2015 - Springer
It is control that turns scientific knowledge into useful technology: in physics and engineering
it provides a systematic way for driving a dynamical system from a given initial state into a …

Introduction to the Pontryagin maximum principle for quantum optimal control

U Boscain, M Sigalotti, D Sugny - PRX Quantum, 2021 - APS
Optimal control theory is a powerful mathematical tool, which has known a rapid
development since the 1950s, mainly for engineering applications. More recently, it has …

Optimal control of coupled spin dynamics: design of NMR pulse sequences by gradient ascent algorithms

N Khaneja, T Reiss, C Kehlet… - Journal of magnetic …, 2005 - Elsevier
In this paper, we introduce optimal control algorithm for the design of pulse sequences in
NMR spectroscopy. This methodology is used for designing pulse sequences that maximize …

Introduction to theoretical and experimental aspects of quantum optimal control

Q Ansel, E Dionis, F Arrouas… - Journal of Physics B …, 2024 - iopscience.iop.org
Quantum optimal control (QOC) is a set of methods for designing time-varying
electromagnetic fields to perform operations in quantum technologies. This tutorial paper …

Optimal control in NMR spectroscopy: Numerical implementation in SIMPSON

Z Tošner, T Vosegaard, C Kehlet, N Khaneja… - Journal of Magnetic …, 2009 - Elsevier
We present the implementation of optimal control into the open source simulation package
SIMPSON for development and optimization of nuclear magnetic resonance experiments for …

Exploring the limits of broadband excitation and inversion pulses

K Kobzar, TE Skinner, N Khaneja, SJ Glaser… - Journal of Magnetic …, 2004 - Elsevier
The design of broadband excitation and inversion pulses with compensation of B1-field
inhomogeneity is a long standing goal in high resolution NMR spectroscopy. Most …

Exploring the limits of broadband 90 and 180 universal rotation pulses

K Kobzar, S Ehni, TE Skinner, SJ Glaser… - Journal of Magnetic …, 2012 - Elsevier
90° and 180° universal rotation (UR) pulses are two of the most important classes of pulses
in modern NMR spectroscopy. This article presents a systematic study characterizing the …

Exploring the limits of broadband excitation and inversion: II. Rf-power optimized pulses

K Kobzar, TE Skinner, N Khaneja, SJ Glaser… - Journal of Magnetic …, 2008 - Elsevier
In [K. Kobzar, TE Skinner, N. Khaneja, SJ Glaser, B. Luy, Exploring the limits of broadband
excitation and inversion, J. Magn. Reson. 170 (2004) 236–243], optimal control theory was …

Speeding up and slowing down the relaxation of a qubit by optimal control

V Mukherjee, A Carlini, A Mari, T Caneva… - Physical Review A, 2013 - APS
We consider a two-level quantum system prepared in an arbitrary initial state and relaxing to
a steady state due to the action of a Markovian dissipative channel. We study how optimal …