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 …

Recent advances in optical studies of condensed matter systems have led to the emergence
of a variety of phenomena that have conventionally been studied in the realm of quantum …

A quantitative assessment of the progress of small prototype quantum processors towards
fault-tolerant quantum computation is a problem of current interest in experimental and …

We characterize single-qubit Clifford gate operations with randomized benchmarking in a
2D array of neutral-atom qubits and demonstrate global and site selected gates with high …

We present experimental results on two-qubit Rydberg-blockade quantum gates and
entanglement in a two-dimensional qubit array. Without postselection against atom loss we …

Muon spin relaxation (μ SR) experiments on single crystals of the structurally perfect
triangular antiferromagnet YbMgGaO 4 indicate the absence of both static long-range …

Crosstalk between target and neighboring spectator qubits due to spillover of control signals
represents a major error source limiting the fidelity of two-qubit entangling gates in quantum …

Probing the polarization of water molecules at charged interfaces by second harmonic
generation spectroscopy has been heretofore limited to isotropic materials. Here we report …

The creation of composite quantum gates that implement quantum response functions U^(θ)
dependent on some parameter of interest θ is often more of an art than a science. Through …

Circulators are nonreciprocal circuit elements that are integral to technologies including
radar systems, microwave communication transceivers, and the readout of quantum …