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Figure 2: A schematic diagram of the system for generating entanglement between a ballistic electron and double quantum dot (DQD) single-electron charge qubit. The ballistic electron is pumped through the resonant tunneling barriers in the quantum wire by a single-electron source. Resonant tunneling occurs when the qubit electron is localized to the dot furthest from the wire, the state, and is suppressed by Coulombic interaction when the qubit electron is localized to the dot closest to the wire, the state.