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arXiv · 2202.01873

Biphoton entanglement of topologically-distinct modes

Cooper Doyle·Wei-Wei Zhang·Michelle Wang·Bryn A. Bell·Stephen D. Bartlett·Andrea Blanco-Redondo
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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.

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Cooper Doyle, Wei-Wei Zhang, Michelle Wang, Bryn A. Bell, Stephen D. Bartlett, Andrea Blanco-Redondo. 2022-02-03. Biphoton entanglement of topologically-distinct modes. https://doi.org/10.1103/physreva.105.023513

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