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 …

A universal fault-tolerant quantum computer that can efficiently solve problems such as
integer factorization and unstructured database search requires millions of qubits with low …

Quantum information processing is steadily progressing from a purely academic discipline
towards applications throughout science and industry. Transitioning from lab-based, proof-of …

Quantum computers have made extraordinary progress over the past decade, and
significant milestones have been achieved along the path of pursuing universal fault-tolerant …

Practical and useful quantum information processing requires substantial improvements with
respect to current systems, both in the error rates of basic operations and in scale. The …

Quantum computers promise tremendous impact across applications—and have shown
great strides in hardware engineering—but remain notoriously error prone. Careful design of …

Quantum computers can efficiently solve classically intractable problems, such as the
factorization of a large number and the simulation of quantum many-body systems …

Effectively manipulating quantum computing (QC) hardware in the presence of imperfect
devices and control systems is a central challenge in realizing useful quantum computers …

In a large scale trapped atomic ion quantum computer, high-fidelity two-qubit gates need to
be extended over all qubits with individual control. We realize and characterize high-fidelity …

Trapped ions (TI) are a leading candidate for building Noisy Intermediate-Scale Quantum
(NISQ) hardware. TI qubits have fundamental advantages over other technologies such as …