A universal fault-tolerant quantum computer that can efficiently solve problems such as
integer factorization and unstructured database search requires millions of qubits with low …

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

Measurement-based quantum error correction relies on the ability to determine the state of a
subset of qubits (ancillas) within a processor without revealing or disturbing the state of the …

Optical atomic clocks are our most precise tools to measure time and frequency,–. Precision
frequency comparisons between clocks in separate locations enable one to probe the space …

Quantum information carriers, just like most physical systems, naturally occupy high-
dimensional Hilbert spaces. Instead of restricting them to a two-level subspace, these high …

We integrate a long-lived memory qubit into a mixed-species trapped-ion quantum network
node. Ion-photon entanglement first generated with a network qubit in Sr+ 88 is transferred …

A future quantum network will consist of quantum processors that are connected by quantum
channels, just like conventional computers are wired up to form the Internet. In contrast to …

Distributed quantum computing (DQC) combines the computing power of multiple networked
quantum processing modules, ideally enabling the execution of large quantum circuits …

Contemporary methods for benchmarking noisy quantum processors typically measure
average error rates or process infidelities. However, thresholds for fault-tolerant quantum …

We develop quantum protocols for anomaly detection and apply them to the task of credit
card fraud detection (FD). First, we establish classical benchmarks based on supervised and …