Optimizing Link-Level Entanglement Generation in Quantum Networks with Unequal Link Lengths

Poramet Pathumsoot, Naphan Benchasattabuse, Ryosuke Satoh, Michal Hajdusek, Rodney Van Meter, Sujin Suwanna

研究成果: Conference contribution

抄録

Quantum internet offers a variety of applications that either enhance or surpass its classical counterpart. Quantum repeaters are imperative to a quantum network as they connect between two quantum nodes, and create quantum entanglement between two targeted nodes with entanglement swapping protocol which require resource from both connections. As a quantum state has a finite decoherent time, it is crucial that a connection protocol is performed efficiently and within suitable time interval, so that two end-To-end matter qubits are entangled. We simulate a second generation network of quantum repeaters, one that is capable of quantum error correction, to estimate the waiting time needed to establish connection between distant nodes. Simulations are performed for a linear chain of nodes with unequal path lengths, and loss rates. We find that asymmetry of path lengths contributes to the waiting time of physical qubits. By simply adjusting the photon generation rate from one of its nodes, the waiting time is reduced while the time to complete quantum state tomography remains unaffected. This simple adjustment can play important roles in compensating for distance asymmetry when a quantum repeater is not stationary.

本文言語English
ホスト出版物のタイトルICSEC 2021 - 25th International Computer Science and Engineering Conference
出版社Institute of Electrical and Electronics Engineers Inc.
ページ179-184
ページ数6
ISBN(電子版)9781665411974
DOI
出版ステータスPublished - 2021
イベント25th International Computer Science and Engineering Conference, ICSEC 2021 - Virtual, Online, Thailand
継続期間: 2021 11月 182021 11月 20

出版物シリーズ

名前ICSEC 2021 - 25th International Computer Science and Engineering Conference

Conference

Conference25th International Computer Science and Engineering Conference, ICSEC 2021
国/地域Thailand
CityVirtual, Online
Period21/11/1821/11/20

ASJC Scopus subject areas

  • 人工知能
  • コンピュータ ネットワークおよび通信
  • コンピュータ サイエンスの応用
  • 自動車工学
  • 土木構造工学
  • 制御と最適化

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