As quantum processors grow in complexity, attention is moving to the scaling prospects of
the entire quantum computing system, including the classical support hardware. Recent …

The most promising quantum algorithms require quantum processors that host millions of
quantum bits when targeting practical applications. A key challenge towards large-scale …

One of the most formidable challenges of scaling up quantum computers is that of control-
signal delivery. Today's small-scale quantum computers typically connect each qubit to one …

One of the main bottlenecks in the pursuit of a large-scale–chip-based quantum computer is
the large number of control signals needed to operate qubit systems. As system sizes scale …

Multiplexed local charge storage, close to quantum processors at cryogenic temperatures
could generate a multitude of control signals, for electronics or qubits, in an efficient manner …

Cryogenic memristor-based DC sources offer a promising avenue for in situ biasing of
quantum dot arrays. In this study, we present experimental results and discuss the scaling …

We use the tip of an atomic force microscope (AFM) to charge floating metallic gates defined
on the surface of a Si/Si Ge heterostructure. The AFM tip serves as an ideal and movable …

Scaling up a quantum processor to tackle real-world problems requires qubit numbers in the
millions. Scalable semiconductor-based architectures have been proposed, many of them …

Measurement of a qubit (quantum bit) is a key element of quantum computation and is
necessary for extracting information from a quantum processor. The physical implementation …

Current quantum systems based on spin qubits are controlled by classical electronics
located outside the cryostat. This approach creates a major wiring bottleneck, which is one …