On the Capacity Region of Bipartite and Tripartite Entanglement Switching
On the Capacity Region of Bipartite and Tripartite Entanglement Switching
复制标题
关于二分和三分纠缠切换的容量域
DOI:
10.1145/3571809
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发表时间:
2023
影响因子:
0.6
通讯作者:
Towsley, Don
中科院分区:
文献类型:
--
作者:
Vardoyan, Gayane;Nain, Philippe;Guha, Saikat;Towsley, Don
We study a quantum entanglement distribution switch serving a set of users in a star topology with equal-length links. The quantum switch, much like a quantum repeater, can perform entanglement swapping to extend entanglement across longer distances. Additionally, the switch is equipped with entanglement switching logic, enabling it to implement switching policies to better serve the needs of the network. In this work, the function of the switch is to create bipartite or tripartite entangled states among users at the highest possible rates at a fixed ratio. Using Markov chains, we model a set of randomized switching policies. Discovering that some are better than others, we present analytical results for the case where the switch stores one qubit per user, and find that the best policies outperform a time division multiplexing policy for sharing the switch between bipartite and tripartite state generation. This performance improvement decreases as the number of users grows. The model is easily augmented to study the capacity region in the presence of quantum state decoherence and associated cut-off times for qubit storage, obtaining similar results. Moreover, decoherence-associated quantum storage cut-off times appear to have little effect on capacity in our identical-link system. We also study a smaller class of policies when the switch stores two qubits per user.
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影响因子:
7.6
作者:
M. Pant;H. Krovi;D. Towsley;L. Tassiulas;Liang Jiang;P. Basu;D. Englund;S. Guha
通讯作者:
M. Pant;H. Krovi;D. Towsley;L. Tassiulas;Liang Jiang;P. Basu;D. Englund;S. Guha
DOI:
10.1145/3386367.3431293
发表时间:
2020-10
期刊:
Proceedings of the 16th International Conference on emerging Networking EXperiments and Technologies
影响因子:
--
作者:
W. Kozlowski;A. Dahlberg;S. Wehner
通讯作者:
W. Kozlowski;A. Dahlberg;S. Wehner
影响因子:
64.8
作者:
Bhaskar, M. K.;Riedinger, R.;Lukin, M. D.
通讯作者:
Lukin, M. D.
影响因子:
4.2
作者:
Khatri, Sumeet;Matyas, Corey T.;Dowling, Jonathan P.
通讯作者:
Dowling, Jonathan P.
影响因子:
7.6
作者:
C. Bradley;S. D. Bone;P. Møller;S. Baier;M. Degen;S. Loenen;H. Bartling;M. Markham;D. Twitchen;R. Hanson;David Elkouss;T. Taminiau
通讯作者:
T. Taminiau