Seminarium Fizyki Ciała Stałego

Tiny sizes of gate defined quantum dots are a huge challengefor scaling dot arrays, with the ultimate goal of building a quantumprocessor. Reaching that goal would be much easier if one could usea fast, long-range coupling mechanism, which enables to space-outa nanometer-scale qubits. In my talk I will describe competing methodsof inducing such coupling. In particular I will present the experimentin which we study exchange interaction between distant electronic spinsmediated by a mesoscopic multielectron quantum dot.