Kavli Affiliate: Stephanie Wehner
| First 5 Authors: Álvaro G. Iñesta, Stephanie Wehner, , ,
| Summary:
Entangled states shared among distant nodes are frequently used in quantum
network applications. When quantum resources are abundant, entangled states can
be continuously distributed across the network, allowing nodes to consume them
whenever necessary. This continuous distribution of entanglement enables
quantum network applications to operate continuously while being regularly
supplied with entangled states. Here, we focus on the steady-state performance
analysis of protocols for continuous distribution of entanglement. We propose
the virtual neighborhood size and the virtual node degree as performance
metrics. We utilize the concept of Pareto optimality to formulate a
multi-objective optimization problem to maximize the performance. As an
example, we solve the problem for a quantum network with a tree topology. One
of the main conclusions from our analysis is that the entanglement consumption
rate has a greater impact on the protocol performance than the fidelity
requirements. The metrics that we establish in this manuscript can be utilized
to assess the feasibility of entanglement distribution protocols for
large-scale quantum networks.
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