Method for Full Bloch-Sphere Control of a Localized Spin via a Single   Electrical Gate
  We calculate the dependence on an applied electric field of the g tensor of a single electron in a self-assembled InAs/GaAs quantum dot. We identify dot sizes and shapes for which one in-plane component of the g tensor changes sign for realistic electric fields, and show this should permit full Bloch-sphere control of the electron spin in the quantum dot using only a static magnetic field and a single vertical electric gate. 
Joseph Pingenot, Craig E. Pryor and Michael E. Flatt\'e