The spin states of single electrons in gate-defined quantum dots satisfy crucial requirements
for a practical quantum computer. These include extremely long coherence times, high …

A fault-tolerant quantum processor may be configured using stationary qubits interacting
only with their nearest neighbours, but at the cost of significant overheads in physical qubits …

Silicon spin qubits stand out due to their very long coherence times, compatibility with
industrial fabrication, and prospect to integrate classical control electronics. To achieve a …

Any architecture for practical quantum computing must be scalable. An attractive approach is
to create multiple cores, computing regions of fixed size that are well spaced but interlinked …

Coherent coupling between distant qubits is needed for many scalable quantum computing
schemes. In quantum dot systems, one proposal for long-distance coupling is to coherently …

The transport of quantum information between different nodes of a quantum device is among
the challenging functionalities of a quantum processor. In the context of spin qubits, this …

Long-distance transfer of quantum information in architectures based on quantum dot spin
qubits will be necessary for their scalability. One way of achieving this goal is to simply move …

A design for a large-scale surface code quantum processor based on a node/network
approach is introduced for semiconductor quantum dot spin qubits. The minimal node …

Shuttling of single electrons in gate-defined silicon quantum dots is numerically simulated. A
minimal gate geometry without explicit tunnel barrier gates is introduced, and used to define …

A single electron spin in a double quantum dot in a magnetic field is considered in terms of a
four-level system. By describing the electron motion between the potential minima via spin …