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To overcome the limitations of node resources, a segmentation- integration method is adopted. This method involves dividing a complete graph state into subgraphs for distribution and subsequently integrating them, reducing the quantum resources required at individual nodes.
For example, by segmenting a large graph state into smaller subgraph states, each node can prepare and distribute these subgraph states more efficiently, even with limited quantum bit resources.
Segmenting larger graph states can achieve a better distribution success rate, even when the quantum bit resources at the nodes are limited. Smaller graph states require fewer entanglement swapping operations for teleportation, improving the fidelity of graph state distribution.
For example, after segmentation, the entangled pairs used for teleporting subgraph states can be prepared with fewer operations, reducing errors and improving the overall quality of the distributed graph states.
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IEEE/ICACT20250011 Slide.12
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