Abstract
We show how to implement quantum transport, generate entangled state, and achieve spatial entanglement distribution via topological Thouless pumping in one-dimensional disordered lattices. We introduce the on-site disorders to suppress the high-order resonant tunneling (which cause wave-packet dispersion) and realize dispersionless Thouless pumping. The interplay between the on-site disorders and the band topology enables robust unidirectional transport. We also demonstrate how to prepare a spatially entangled two-particle NOON state via Hong-Ou-Mandel interference assisted by the Thouless pumping. The quantum entanglement can be well preserved during the distribution between spatially separated sites. Our system paves a way to wide applications of topology in quantum information process.
Original language | English |
---|---|
Article number | 052323 |
Journal | Physical Review A |
Volume | 101 |
Issue number | 5 |
DOIs | |
Publication status | Published - May 2020 |