Optimal Scheduling in a Quantum Switch

Bhambay, Sanidhay; Vasantam, Thirupathaiah; Walton, Neil

Abstract

With a growing number of quantum networks in operation, there is a pressing need for performance analysis of quantum switching technologies. A quantum switch establishes, distributes, and maintains entanglements across a network. In contrast to a classical switching fabric, a quantum switch is a two sided queueing network. The switch generates Link Level Entanglements (LLEs), which are then fused to process the networks entanglement requests. Our proof techniques analyse a two time scale separation phenomenon at the fluid scale for a general switch topology. This allows us to demonstrate that the optimal fluid dynamics are given by a scheduling algorithm that solves a certain average reward Markov Decision Process.

Citation

Bhambay, S., Vasantam, T., & Walton, N. (in press). Optimal Scheduling in a Quantum Switch. ACM SIGMETRICS Performance Evaluation Review,

• Journal Article Type: Article
• Acceptance Date: Dec 10, 2024
• Deposit Date: Jan 21, 2025
• Journal: ACM SIGMETRICS Performance Evaluation Review
• Peer Reviewed: Peer Reviewed
• Public URL: https://durham-repository.worktribe.com/output/3344121
• Publisher URL: https://dl.acm.org/newsletter/sigmetrics