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 report a proof-of-principle experimental demonstration of the quantum speed-up for
learning agents utilizing a small-scale quantum information processor based on …

Single-photon detectors are ubiquitous and integral components of photonic quantum
cryptography, communication, and computation. Many applications, however, require not …

Qubits encoded in hyperfine states of trapped ions are ideal for quantum computation given
their long lifetimes and low sensitivity to magnetic fields, yet they suffer from off-resonant …

High-fidelity qubit measurements play a crucial role in quantum computation,
communication, and metrology. In recent experiments, it has been shown that readout …

Quantum error correction provides a path to large-scale quantum computers, but is built on
challenging assumptions about the characteristics of the underlying errors. In particular, the …

Quantum networking links quantum processors through remote entanglement for distributed
quantum information processing and secure long-range communication. Trapped ions are a …

Using trapped atomic ions, we demonstrate a tailored and versatile effective spin system
suitable for quantum simulations and universal quantum computation. By simply applying …

A promising scheme for building scalable quantum simulators and computers is the
synthesis of a scalable system using interconnected subsystems. A prerequisite for this …