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 …

Microwave trapped-ion quantum logic gates avoid spontaneous emission as a fundamental
source of decoherence. However, microwave two-qubit gates are still slower than laser …

We develop an inverse geometric optimization technique that allows the derivation of
optimal and robust exact solutions of low-dimension quantum control problems driven by …

Stimulated Raman adiabatic passage (STIRAP) is a widely used protocol to realize high-
fidelity and robust quantum control in various quantum systems. However, further application …

In this work, we put forward an approach of constructing the optimal composite pulse
sequence for robust population transfer in two-level systems. This approach is quite …

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 …

We introduce universally robust sequences for dynamical decoupling, which simultaneously
compensate pulse imperfections and the detrimental effect of a dephasing environment to …

We perform comprehensive experimental tests of various composite pulse sequences using
one of the open-access IBM quantum processors, based on superconducting transmon …

We study the robustness of the evolution of a quantum system against small uncontrolled
variations in parameters in the Hamiltonian. We show that the fidelity susceptibility, which …

We study optimal quantum control robust against pulse inhomogeneities for various partial
population transfers and single-qubit gates by inverse optimization. We show that the pulse …