Topological quantum transport and spatial entanglement distribution via disordered bulk channel

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 wavepacket 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 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.

arXiv comment7 pages, 6 figures

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• Chiral quantum optics in the bulk of photonic quantum Hall systems
• Fast quantum transfer mediated by topological domain walls
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• Quantum transport in a one-dimensional quasicrystal with mobility edges
• Splitting and connecting singlets in atomic quantum circuits
• Dynamical uncertainty propagation with noisy quantum parameters
• Hong-Ou-Mandel Interference in a temporal-average-inversion-symmetric chain
• Symmetry-protected Landau-Zener-Stückelberg-Majorana interference and non-adiabatic topological transport of edge states
• Topological Thouless pumping in arrays of coupled spin chains
• Absence of disordered Thouless pumps at finite frequency
• Asymmetric topological pumping in nonparaxial photonics
• Multipartite entanglement distribution in a topological photonic network
• Non-Abelian interference of topological edge states
• Hidden topology in flat-band topological insulators: Strong, weak and square-root topological states