Trapped ions are among the most promising systems for practical quantum computing (QC).
The basic requirements for universal QC have all been demonstrated with ions, and …

Trapped-ion quantum information processors store information in atomic ions maintained in
position in free space by electric fields. Quantum logic is enacted through manipulation of …

The availability of a universal quantum computer may have a fundamental impact on a vast
number of research fields and on society as a whole. An increasingly large scientific and …

One of the most formidable challenges of scaling up quantum computers is that of control-
signal delivery. Today's small-scale quantum computers typically connect each qubit to one …

Constructing a large-scale ion trap quantum processor will require entangling gate
operations that are robust in the presence of noise and experimental imperfection. We …

Atomic ions trapped in electromagnetic potentials have long been used for fundamental
studies in quantum physics. Over the past two decades, trapped ions have been …

Trapped-ion quantum-information processors offer many advantages for achieving high-
fidelity operations on a large number of qubits, but current experiments require bulky …

Over the past decade, significant progress in quantum technologies has been made, and
hence, engineering of these systems has become an important research area. Many …

Fast control of quantum systems is essential to make use of quantum properties before they
degrade by decoherence. This is important for quantum-enhanced information processing …

State-of-the-art microfabricated ion traps for quantum information research are approaching
nearly one hundred control electrodes. We report here on the development and testing of a …