Abstract The GRadient Ascent Pulse Engineering (GRAPE) method is widely used for
optimization in quantum control. GRAPE is gradient search method based on exact …

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 …

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 …

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 …

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 …

Quantum optimal control (QOC) is a set of methods for designing time-varying
electromagnetic fields to perform operations in quantum technologies. This tutorial paper …

Quantum metrology is supposed to significantly improve the precision of parameter
estimation by utilizing suitable quantum resources. However, the predicted precision can be …

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 …

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 …

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 …