The role of quantum confinement (QC) in Si and Ge nanostructures (NSs) including quantum
dots, quantum wires, and quantum wells is assessed under a wide variety of fabrication …

The spin of a confined electron, when oriented originally in some direction, will lose memory
of that orientation after some time. Physical mechanisms leading to this relaxation of spin …

We consider the decoherence of a single localized electron spin due to its coupling to the
lattice nuclear spin bath in a semiconductor quantum computer architecture. In the presence …

Exchange-coupled spin qubits in semiconductor nanostructures are shown to be vulnerable
to dephasing caused by charge noise invariably present in the semiconductor environment …

A fundamental interaction for electrons is their hyperfine interaction (HFI) with nuclear spins.
HFI is well characterized in free atoms and molecules, and is crucial for purposes from …

The conduction band degeneracy in Si is detrimental to quantum computing based on spin
qubits, for which a nondegenerate ground orbital state is desirable. This degeneracy is lifted …

We study exchange coupling in Si double quantum dots, which have been proposed as
suitable candidates for spin qubits due to their long spin coherence times. We discuss in …

This chapter establishes the relationship between low-frequency noise and coherence
decay of localized spins in semiconductors, as measured by a number of different pulse spin …

The formation and subsequent growth of crystalline silicon nanoclusters (Si-ncs) in
annealed silicon-rich silicon oxides (SRSOs) were studied by glancing angle x-ray …

Orbital degeneracy of the electronic conduction band edge in silicon is a potential roadblock
to the storage and manipulation of quantum information involving the electronic spin degree …