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 …

Conical intersections are ubiquitous in chemistry and physics, often governing processes
such as light harvesting, vision, photocatalysis and chemical reactivity. They act as funnels …

Quantum information processing systems rely on a broad range of microwave technologies
and have spurred development of microwave devices and methods in new operating …

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 …

We propose a simple quantum algorithm for simulating highly oscillatory quantum dynamics,
which does not require complicated quantum control logic for handling time-ordering …

We actively stabilize the harmonic oscillation frequency of a laser-cooled atomic ion
confined in a radiofrequency (rf) Paul trap by sampling and rectifying the high voltage rf …

Quantum networks, relying on the distribution of quantum entanglement between remote
locations, have the potential to transform quantum computation and secure long-distance …

We demonstrate quantum entanglement of two trapped atomic ion qubits using a sequence
of ultrafast laser pulses. Unlike previous demonstrations of entanglement mediated by the …

Technical noise present in laser systems can limit their ability to perform high fidelity
quantum control of atomic qubits. The ultimate fidelity floor for atomic qubits driven with laser …

Dipole spin-wave states of atomic ensembles with wave vector k (ω) mismatched from the
dispersion relation of light are difficult to access by far-field excitation but may support rich …