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Paper Abstract and Keywords
Presentation 2026-03-04 10:30
Quantum Network Topology Design Considering Entanglement Consumption Efficiency
Kota Iida, Takuji Tachibana (Univ. Fukui) PN2025-65
Abstract (in Japanese) (See Japanese page) 
(in English) While the development of large-scale quantum computers is still in progress, distributed quantum computing, which interconnects multiple small-scale quantum computers via quantum networks, has attracted significant attention. In quantum networks, operations such as swapping and purification are essential for qubit transmission; however, they increase entanglement consumption and processing time.
This paper proposes a quantum network topology design to determine the optimal placement and quantity of quantum memory on a physical network. The proposed method formulates a combinatorial optimization problem to minimize the total entanglement consumption across the network while considering communication demands and quantum memory constraints, solving it using a genetic algorithm. Furthermore, the link fidelity model incorporates polarization mode dispersion (PMD), which causes distance-dependent attenuation.
Numerical examples investigate the impact of the maximum quantum memory capacity and PMD coefficients on entanglement consumption. The results demonstrate that the proposed method satisfies all communication demands with lower entanglement consumption than comparative methods, confirming its effectiveness even under strict quantum memory capacity constraints or environments with high PMD coefficients.
Keyword (in Japanese) (See Japanese page) 
(in English) Quantum network / Topology design / Resource allocation / Entanglement consumption / Genetic algorithm / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 372, PN2025-65, pp. 117-122, March 2026.
Paper # PN2025-65 
Date of Issue 2026-02-23 (PN) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF PN2025-65

Conference Information
Committee PN  
Conference Date 2026-03-02 - 2026-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To PN 
Conference Code 2026-03-PN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Quantum Network Topology Design Considering Entanglement Consumption Efficiency 
Sub Title (in English)  
Keyword(1) Quantum network  
Keyword(2) Topology design  
Keyword(3) Resource allocation  
Keyword(4) Entanglement consumption  
Keyword(5) Genetic algorithm  
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1st Author's Name Kota Iida  
1st Author's Affiliation University of Fukui (Univ. Fukui)
2nd Author's Name Takuji Tachibana  
2nd Author's Affiliation University of Fukui (Univ. Fukui)
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Speaker Author-1 
Date Time 2026-03-04 10:30:00 
Presentation Time 25 minutes 
Registration for PN 
Paper # PN2025-65 
Volume (vol) vol.125 
Number (no) no.372 
Page pp.117-122 
#Pages 6 
Date of Issue 2026-02-23 (PN) 

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