Superconducting fluxonium qubits provide a promising alternative to transmons on the path
toward large-scale superconductor-based quantum computing due to their better coherence …

Quantum computers promise tremendous impact across applications—and have shown
great strides in hardware engineering—but remain notoriously error prone. Careful design of …

Maintaining or even improving gate performance with growing numbers of parallel
controlled qubits is a vital requirement for fault-tolerant quantum computing. For …

Striving for higher gate fidelity is crucial not only for enhancing existing noisy intermediate-
scale quantum devices, but also for unleashing the potential of fault-tolerant quantum …

We have integrated single and coupled superconducting transmon qubits into flip-chip
modules. Each module consists of two chips—one quantum chip and one control chip—that …

Gate-based quantum computers typically encode and process information in two-
dimensional units called qubits. Using d-dimensional qudits instead may offer intrinsic …

For building a scalable quantum processor with superconducting qubits, ZZ interaction is of
great concern because its residual has a crucial impact to two-qubit gate fidelity. Two-qubit …

Excitement about the promise of quantum computers is tempered by the reality that the
hardware remains exceptionally fragile and error prone, forming a bottleneck in the …

PyGSTi is a Python software package for assessing and characterizing the performance of
quantum computing processors. It can be used as a standalone application, or as a library …

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 …