Full control of quadruple quantum dot circuit charge states in the single electron regime

Full control of quadruple quantum dot circuit charge states in the single electron regime
M. R. Delbecq, T. Nakajima, T. Otsuka, S. Amaha, J. D. Watson, M. J. Manfra, and S. Tarucha. Appl. Phys. Lett. 104, 183111 [PDF]