GRAPE optimization for open quantum systems with time-dependent decoherence rates driven by coherent and incoherent controls

VN Petruhanov, AN Pechen - Journal of Physics A: Mathematical …, 2023‏ - iopscience.iop.org
Abstract The GRadient Ascent Pulse Engineering (GRAPE) method is widely used for
optimization in quantum control. GRAPE is gradient search method based on exact …

Optimal state manipulation for a two-qubit system driven by coherent and incoherent controls

OV Morzhin, AN Pechen - Quantum Information Processing, 2023‏ - Springer
Optimal control of two-qubit quantum systems attracts high interest due to applications
ranging from two-qubit gate generation to optimization of receiver for transferring coherence …

Quantum control landscape for ultrafast generation of single-qubit phase shift quantum gates

BO Volkov, OV Morzhin… - Journal of Physics A …, 2021‏ - iopscience.iop.org
Mathematical analysis of quantum control landscapes, which aims to prove either absence
or existence of traps for quantum control objective functionals, is an important topic in …

Optimization landscape of quantum control systems

X Ge, R Wu, H Rabitz - Complex System Modeling and …, 2021‏ - ieeexplore.ieee.org
Optimization is ubiquitous in the control of quantum dynamics in atomic, molecular, and
optical systems. The ease or difficulty of finding control solutions, which is practically crucial …

QGOpt: Riemannian optimization for quantum technologies

I Luchnikov, A Ryzhov, S Filippov, H Ouerdane - Scipost physics, 2021‏ - scipost.org
Many theoretical problems in quantum technology can be formulated and addressed as
constrained optimization problems. The most common quantum mechanical constraints …

The surprising ease of finding optimal solutions for controlling nonlinear phenomena in quantum and classical complex systems

H Rabitz, B Russell, TS Ho - The Journal of Physical Chemistry A, 2023‏ - ACS Publications
This Perspective addresses the often observed surprising ease of achieving optimal control
of nonlinear phenomena in quantum and classical complex systems. The circumstances …

Noise resistant quantum control using dynamical invariants

A Levy, A Kiely, JG Muga, R Kosloff… - New Journal of …, 2018‏ - iopscience.iop.org
A systematic approach to design robust control protocols against the influence of different
types of noise is introduced. We present control schemes which protect the decay of the …

Quantum gate generation in two-level open quantum systems by coherent and incoherent photons found with gradient search

VN Petruhanov, AN Pechen - Photonics, 2023‏ - mdpi.com
In this work, we consider an environment formed by incoherent photons as a resource for
controlling open quantum systems via an incoherent control. We exploit a coherent control in …

Control of a qubit under Markovian and non-Markovian noise

GJ Delben, MW Beims, MGE da Luz - Physical Review A, 2023‏ - APS
An essential action in quantum information processing is the manipulation (control) of a
single qubit, ideally a closed two-level system. However, in realistic applications, quantum …

Why is chemical synthesis and property optimization easier than expected?

KW Moore, A Pechen, XJ Feng, J Dominy… - Physical Chemistry …, 2011‏ - pubs.rsc.org
Identifying optimal conditions for chemical and material synthesis as well as optimizing the
properties of the products is often much easier than simple reasoning would predict. The …