Quantum computers hold the promise of massive performance enhancements across a
range of applications, from cryptography and databases to revolutionary scientific simulation …

The superconducting transmon qubit is a leading platform for quantum computing and
quantum science. Building large, useful quantum systems based on transmon qubits will …

The spin of an electron or a nucleus in a semiconductor naturally implements the unit of
quantum information—the qubit. In addition, because semiconductors are currently used in …

A single atom is the prototypical quantum system, and a natural candidate for a quantum bit,
or qubit—the elementary unit of a quantum computer. Atoms have been successfully used to …

Silicon is one of the most promising semiconductor materials for spin-based information
processing devices,. Its advanced fabrication technology facilitates the transition from …

A major challenge in using spins in the solid state for quantum technologies is protecting
them from sources of decoherence. This is particularly important in nanodevices where the …

Sensitive nanoscale magnetic resonance imaging of target spins using nitrogen-vacancy
(NV) centers in diamond requires a quantitative understanding of dominant noise at the …

We present measurements of spin relaxation times (T 1, T 1 ρ, T 2) on very shallow (≲ 5 nm)
nitrogen-vacancy centers in high-purity diamond single crystals. We find a reduction of spin …

We analyze the data and discuss their implications for the microscopic origin of the low-
frequency flux noise in superconducting circuits. We argue that this noise is produced by …

We have developed nanoscale double-gated field-effect-transistors for the study of electron
states and transport properties of single deliberately implanted phosphorus donors. The …