Nitish K. Panigrahy
On the Capacity Region of a Quantum Switch with Entanglement Purification
Panigrahy, Nitish K.; Vasantam, Thirupathaiah; Towsley, Don; Tassiulas, Leandros
Authors
Dr Thirupathaiah Vasantam thirupathaiah.vasantam@durham.ac.uk
Assistant Professor
Don Towsley
Leandros Tassiulas
Abstract
Quantum switches are envisioned to be an integral component of future entanglement distribution networks. They can provide high quality entanglement distribution service to end-users by performing quantum operations such as entanglement swapping and entanglement purification. In this work, we characterize the capacity region of such a quantum switch under noisy channel transmissions and imperfect quantum operations. We express the capacity region as a function of the channel and network parameters (link and entanglement swap success probability), entanglement purification yield and application level parameters (target fidelity threshold). In particular, we provide necessary conditions to verify if a set of request rates belong to the capacity region of the switch. We use these conditions to find the maximum achievable end-to-end user entanglement generation throughput by solving a set of linear optimization problems. We develop a max-weight scheduling policy and prove that the policy stabilizes the switch for all feasible request arrival rates. As we develop scheduling policies, we also generate new results for computing the conditional yield distribution of different classes of purification protocols. The conclusions obtained in this work can yield useful guidelines for subsequent quantum switch designs.
Citation
Panigrahy, N. K., Vasantam, T., Towsley, D., & Tassiulas, L. (2023, May). On the Capacity Region of a Quantum Switch with Entanglement Purification. Paper presented at INFOCOM 2023: IEEE International Conference on Computer Communications, New York
Presentation Conference Type | Conference Paper (unpublished) |
---|---|
Conference Name | INFOCOM 2023: IEEE International Conference on Computer Communications |
Conference Location | New York |
Start Date | May 17, 2023 |
End Date | May 20, 2023 |
Deposit Date | Jan 30, 2023 |
Public URL | https://durham-repository.worktribe.com/output/1135230 |
Publisher URL | https://infocom2023.ieee-infocom.org/ |
Additional Information | 17–20 May 2023 |
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