The transformation of digital computers from bulky machines to portable systems has been
enabled by new materials and advanced processing technologies that allow ultrahigh …

Spintronics, or spin electronics, involves the study of active control and manipulation of spin
degrees of freedom in solid-state systems. This article reviews the current status of this …

The canonical example of a quantum-mechanical two-level system is spin. The simplest
picture of spin is a magnetic moment pointing up or down. The full quantum properties of …

Multi-qubit systems are crucial for the advancement and application of quantum science.
Such systems require maintaining long coherence times while increasing the number of …

We have performed a systematic calculation for the non-Markovian dynamics of a localized
electron spin interacting with an environment of nuclear spins via the Fermi contact …

We observed mixing between two-electron singlet and triplet states in a double quantum dot,
caused by interactions with nuclear spins in the host semiconductor. This mixing was …

Abstract Information processing using quantum systems provides new paradigms for
computation and communication and may yield insights into our understanding of the limits …

Recent experiments have demonstrated quantum manipulation of two-electron spin states in
double quantum dots using electrically controlled exchange interactions. Here we present a …

Donor electron spins in phosphorus-doped silicon (Si: P) are a candidate two-level system
(qubit) for quantum information processing. Spin echo measurements of isotopically purified …

Using spin to replace or augment the role of charge in signal processing devices, computing
systems and circuits may improve speed, power consumption, and device density in some …