"Intertwined entanglement in topological pumps" (MCQST Colloquium) (Prof. Tilman Esslinger)

We create spatially separated Bell pairs from double occupancies in a fermionic lattice gas using a bidirectional Thouless pump. By controlling the interaction, exactly one atom of the double occupancy occupies the lower and the other the upper band of the topological pump, each experiencing opposite Chern numbers. Topological pumping therefore transports the two correlated components in opposite directions, further separating them with each pumping cycle.