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 …

Electron spins in silicon quantum dots are excellent qubits because they have long
coherence times and high gate fidelities and are compatible with advanced semiconductor …

Quantum states of atomic systems can be directly addressed using quantum optical
microscopes. However, solid-state microscopy techniques cannot typically achieve both …

Silicon-quantum-dot qubits must contend with low-lying valley excited states that are
sensitive functions of the quantum-well heterostructure and disorder; quantifying and …

We propose a quadrupolar exchange-only spin qubit that is highly robust against charge
noise and nuclear spin dephasing, the dominant decoherence mechanisms in quantum …

Valley-orbit coupling is a key parameter for a silicon quantum dot in determining its
suitability for applications in quantum information processing. In this paper we study the …

The mixing of conduction band valleys plays a critical role in determining electronic
spectrum and dynamics in a silicon nanostructure. Here, we investigate theoretically how …

A spin qubit in semiconductor quantum dots holds promise for quantum information
processing for scalability and long coherence time. An important semiconductor qubit …

Exchange coupling is a key ingredient for spin-based quantum technologies since it can be
used to entangle spin qubits and create logical spin qubits. However, the influence of the …

We investigate the effect of the valley degree of freedom on Pauli-spin blockade readout of
spin qubits in silicon. The valley splitting energy sets the singlet-triplet splitting and thereby …