Study achieves the coherent manipulation of electronspins in silicon NaturePhysics
near either the dot-1 or dot-2 charge transitions and wait for a variable time. We then reverse the pulse sequence and use PSB to distinguish between singlet and triplet states.may relax towithout undergoing, at minimum, a spin flip in dot 2 and therefore does not appreciably relax during the microsecond timescales in these measurements.may relax towithout incurring a spin flip in dot 1, and therefore does not appreciably relax..
When preparing the lower-energy state, there is a strong enhancement in the triplet return probability inside the region, indicating that we have prepared the state. The overall visibility of the higher-energy state traces is lower due to imperfections in the preparation and readout.
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