Single electron spin addressing by using photon-assisted-tunneling in a double quantum dot including a micro-magnet

In a numerical simulation we demonstrate spin readout by using photon assisted tunneling (PAT). We are using a realistic double quantum dot design including a micro-magnet. The micro-magnet generates different Zeeman fields between the two dots. If the photon frequency matches the energy difference of either the up-spin or the down-spin state between the two dots, the electron will be delocalized over the two dots by inter-dot PAT. We numerically simulate the micro-magnet induced stray field for various micro-magnet parameters and calculate the PAT spin readout performance.