In the past decade, semiconducting qubits have made great strides in overcoming
decoherence, improving the prospects for scalability and have become one of the leading …

Coherent excitation of an ensemble of quantum objects underpins quantum many-body
phenomena and offers the opportunity to realize a memory that stores quantum information …

The spin of an electron is a promising memory state and qubit. Connecting spin states that
are spatially far apart will enable quantum nodes and quantum networks based on the …

Accessing an ensemble of coherently interacting objects at the level of single quanta via a
proxy qubit is transformative in the investigations of emergent quantum phenomena. An …

A spin-photon interface should operate with both coherent photons and a coherent spin to
enable cluster-state generation and entanglement distribution. In high-quality devices, self …

A coherent ensemble of spins interfaced with a proxy qubit is an attractive platform to create
many-body coherences and probe the regime of collective excitations. An electron spin qubit …

Coupling a qubit coherently to an ensemble is the basis for collective quantum memories. A
single driven electron in a quantum dot can deterministically excite low-energy collective …

Purifying a high-temperature ensemble of quantum particles toward a known state is a key
requirement to exploit quantum many-body effects. An alternative to passive cooling, which …

A controlled quantum system can alter its environment by feedback, leading to reduced-
entropy states of the environment and to improved system coherence. Here, using a …

Controllable quantum many-body systems are platforms for fundamental investigations into
the nature of entanglement and promise to deliver computational speed-up for a broad class …