Mediating with quantum dots

Artist impression of two electron spins that talk to each other via a 'quantum mediator'. The two electrons are each trapped in a semiconductor nanostructure (quantum dot). The two spins interact, and this interaction is mediated by a third, empty quantum dot in the middle. In the future, coupling over larger distances can be achieved using other objects in between to mediate the interaction. This will allow researchers to create two-dimensional networks of coupled spins, that act as quantum bits in a future quantum computer.
Copyright: Tremani/TU Delft.