Figure 1
From: Preparing Multipartite Entangled Spin Qubits via Pauli Spin Blockade
Network of driven (input) electrons and DQDs capacitively coupled with side gate 1 (sg1) and side gate 2 (sg2) which can tune the energy level of the dots. The two dots are tunnel-coupled (the subscripts R,m and L stand for right, mutual and left, respectively) with each other and with the source and drain. An attempt to fuse two W states, WA and WB via Pauli spin blockade (PSB) is as follows: One electron from each W state is sent to corresponding QD. Utilising charge sensing technique, observing no PSB implies a successful fusion as explained in the text.
