Spin–orbit coupling in silicon for electrons bound to donors
Spin–orbit coupling (SOC) is fundamental to a wide range of phenomena in condensed
matter, spanning from a renormalisation of the free-electron g-factor, to the formation of
topological insulators, and Majorana Fermions. SOC has also profound implications in spin-
based quantum information, where it is known to limit spin lifetimes (T 1) in the inversion
asymmetric semiconductors such as GaAs. However, for electrons in silicon—and in
particular those bound to phosphorus donor qubits—SOC is usually regarded weak …
matter, spanning from a renormalisation of the free-electron g-factor, to the formation of
topological insulators, and Majorana Fermions. SOC has also profound implications in spin-
based quantum information, where it is known to limit spin lifetimes (T 1) in the inversion
asymmetric semiconductors such as GaAs. However, for electrons in silicon—and in
particular those bound to phosphorus donor qubits—SOC is usually regarded weak …
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