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 …

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

We describe and benchmark a new quantum charge-coupled device (QCCD) trapped-ion
quantum computer based on a linear trap with periodic boundary conditions, which …

Optical atomic clocks represent the state of the art in the frontier of modern measurement
science. In this article a detailed review on the development of optical atomic clocks that are …

Recent developments in frequency metrology and optical clocks have been based on
electronic transitions in atoms and singly charged ions as references. The control over all …

Trapped atomic ions are standards for quantum information processing, serving as quantum
memories, hosts of quantum gates in quantum computers and simulators, and nodes of …

The trapped-ion quantum charge-coupled device (QCCD) proposal, lays out a blueprint for a
universal quantum computer that uses mobile ions as qubits. Analogous to a charge …

We compare two different implementations of fault-tolerant entangling gates on logical
qubits. In one instance, a twelve-qubit trapped-ion quantum computer is used to implement a …

Quantum computers hold the promise of solving certain computational tasks much more
efficiently than classical computers. We review recent experimental advances towards a …

Time has always had a special status in physics because of its fundamental role in
specifying the regularities of nature and because of the extraordinary precision with which it …