Biphoton entanglement of topologically-distinct modes

Abstract

The robust generation and manipulation of entangled multiphoton states on-chip has an essential role in quantum computation and communication. Lattice topology has emerged as a means of protecting photonic states from disorder but entanglement across different topologies remained unexplored. We report biphoton entanglement between topologically distinct spatial modes in a bipartite array of silicon waveguides. The results highlight topology as an additional degree of freedom for entanglement and open avenues for investigating information teleportation between trivial and topological modes.

References in corpus (3)

• Quantum interference of topological states of light
• Interaction-induced two-photon edge states in extended Hubbard model realized in a cavity array
• Topologically Protected Quantum Entanglement

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• Topology with memory in nonlinear driven-dissipative photonic lattices
• Tunable Generation of Spatial Entanglement in Nonlinear Waveguide Arrays
• Self-induced manipulation of biphoton entanglement in topologically distinct modes
• Tailoring quantum walks in integrated photonic lattices
• Identification of quantum generative circuits with parallel quantum neural network