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QI: Fachverband Quanteninformation

QI 5: Entanglement Theory

QI 5.6: Vortrag

Montag, 18. März 2024, 16:45–17:00, HFT-FT 101

Multiplexing and Information Transport in Quantum Networks — •Julia Freund, Alexander Pirker, and Wolfgang Dür — Insitute for Theoretical Physics, Innsbruck, Austria

The concepts of multiplexing and transport of quantum data are vital in quantum information such as quantum networks, distributed quantum metrology and computing. We focus on graph states due to their key role as multipartite-entangled resource states for example in measurement-based quantum computation or entanglement-based quantum networks. To manipulate the resource state for data transport and multiplexing, we utilize local Clifford operations, Pauli measurements and classical communication. The manipulation strategies we provide allow to extract and transport multiplexed Bell pairs, GHZ states and one-dimensional cluster states within a two-dimensional cluster state resource. Furthermore, our strategies maintain connectivity in the remaining graph state while being efficient in terms of required manipulations.

Keywords: quantum communication; quantum networks; measurement-based quantum computing