Optical pumping and initialization of a hole spin in site-controlled InGaAs pyramidal quantum dots

R. A. Barcan, I. Samaras, K. Barr +3

We investigate site-controlled In${}_{0.25}$Ga${}_{0.75}$As quantum dots in (111)B GaAs pyramidal recesses as spin qubits. Combining scanning confocal cryomicroscopy, magneto-photolumi…