Electric-field noise near surfaces is a common problem in diverse areas of physics and a
limiting factor for many precision measurements. There are multiple mechanisms by which …

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 …

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 …

The practical construction of scalable quantum-computer hardware capable of executing
nontrivial quantum algorithms will require the juxtaposition of different types of quantum …

Editor's note: As an emerging technology, quantum computing brings unique promises in
creating a fundamentally different paradigm of information processing. This article reviews …

Coherent gate errors are a concern in many proposed quantum-computing architectures.
Here, we show that certain coherent errors can be reduced by a local optimization that …

Cryogenic environments benefit ion trapping experiments by offering lower motional heating
rates, collision energies, and an ultrahigh vacuum (UHV) environment for maintaining long …

The fidelity of laser-driven quantum logic operations on trapped ion qubits tend to be lower
than microwave-driven logic operations due to the difficulty of stabilizing the driving fields at …

Entanglement-based quantum networks require quantum photonic interfaces between
stationary quantum memories and photons, enabling entanglement distribution. Here we …

(57) ABSTRACT A modular quantum computer architecture is developed with a hierarchy of
interactions that can scale to very large numbers of qubits. Local entangling quantum gates …