Quantum optimal control, a toolbox for devising and implementing the shapes of external
fields that accomplish given tasks in the operation of a quantum device in the best way …

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 …

The quantum approximate optimization algorithm (QAOA) has become a cornerstone of
contemporary quantum applications development. In QAOA, a quantum circuit is trained—by …

Quantum gates and entanglement based on dipole–dipole interactions of neutral Rydberg
atoms are relevant to both fundamental physics and quantum information science. The …

Rydberg-atom arrays are a leading platform for quantum computing and simulation,
combining strong interactions with highly coherent operations and flexible geometries …

Quantum parameter estimation promises a high-precision measurement in theory; however,
how to design the optimal scheme in a specific scenario, especially under a practical …

Coherence time and gate fidelities in Rydberg atom quantum simulators and computers are
fundamentally limited by the Rydberg state lifetime. Circular Rydberg states are highly …

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 …

Interactions are essential for the creation of correlated quantum many-body states. Although
two-body interactions underlie most natural phenomena, three-and four-body interactions …

We investigate the robustness of two-qubit gates to deviations of experimental controls on a
neutral atom platform utilizing Rydberg states. We construct robust controlled-Z gates …