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 …
optimization in quantum control. GRAPE is gradient search method based on exact …
Control landscapes for high-fidelity generation of C-NOT and C-PHASE gates with coherent and environmental driving
AN Pechen, VN Petruhanov, OV Morzhin… - The European Physical …, 2024 - Springer
High-fidelity generation of two-qubit gates is important for quantum computation, since such
gates are components of popular universal sets of gates. Here, we consider the problem of …
gates are components of popular universal sets of gates. Here, we consider the problem of …
Quantum Control Landscapes for Generation of H and T Gates in an Open Qubit with Both Coherent and Environmental Drive
VN Petruhanov, AN Pechen - Photonics, 2023 - mdpi.com
An important problem in quantum computation is the generation of single-qubit quantum
gates such as Hadamard (H) and π/8 (T) gates, which are components of a universal set of …
gates such as Hadamard (H) and π/8 (T) gates, which are components of a universal set of …
Quantum control of continuous systems via nonharmonic potential modulation
We present a theoretical proposal for preparing and manipulating a state of a single
continuous-variable degree of freedom confined to a nonharmonic potential. By utilizing …
continuous-variable degree of freedom confined to a nonharmonic potential. By utilizing …
qocttools: A program for quantum optimal control calculations
A Castro - Computer Physics Communications, 2024 - Elsevier
The qocttools code performs optimization calculations on quantum systems using optimal
control theory. The problem that it solves is the following: given a system governed by a …
control theory. The problem that it solves is the following: given a system governed by a …
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 …
electromagnetic fields to perform operations in quantum technologies. This tutorial paper …
Control-enhanced quantum metrology under Markovian noise
Quantum metrology is supposed to significantly improve the precision of parameter
estimation by utilizing suitable quantum resources. However, the predicted precision can be …
estimation by utilizing suitable quantum resources. However, the predicted precision can be …
Macroscopic hyperpolarization enhanced with quantum optimal control
Hyperpolarization of nuclear spins enhances nuclear magnetic resonance signals, which
play a key role for imaging and spectroscopy in the natural and life sciences. This signal …
play a key role for imaging and spectroscopy in the natural and life sciences. This signal …
Cloud on-demand emulation of quantum dynamics with tensor networks
We introduce a tensor network based emulator, simulating a programmable analog quantum
processing unit (QPU). The software package is fully integrated in a cloud platform providing …
processing unit (QPU). The software package is fully integrated in a cloud platform providing …
Analyzing the collective emission of a Rydberg-blockaded single-photon source based on an ensemble of thermal atoms
An ensemble of rubidium atoms can be excited with lasers such that it evolves into an
entangled state with just one collective excitation within the Rydberg-blockade radius. The …
entangled state with just one collective excitation within the Rydberg-blockade radius. The …