Optimizing Link-Level Entanglement Generation in Quantum Networks with Unequal Link Lengths
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...
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th-mahidol.767152022-08-04T15:57:18Z 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 Keio University Mahidol University Computer Science Engineering Mathematics 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. 2022-08-04T08:28:20Z 2022-08-04T08:28:20Z 2021-01-01 Conference Paper ICSEC 2021 - 25th International Computer Science and Engineering Conference. (2021), 179-184 10.1109/ICSEC53205.2021.9684634 2-s2.0-85125165648 https://repository.li.mahidol.ac.th/handle/123456789/76715 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85125165648&origin=inward |
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Computer Science Engineering Mathematics Poramet Pathumsoot Naphan Benchasattabuse Ryosuke Satoh Michal Hajdusek Rodney Van Meter Sujin Suwanna Optimizing Link-Level Entanglement Generation in Quantum Networks with Unequal Link Lengths |
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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. |
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Keio University |
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Keio University Poramet Pathumsoot Naphan Benchasattabuse Ryosuke Satoh Michal Hajdusek Rodney Van Meter Sujin Suwanna |
format |
Conference or Workshop Item |
author |
Poramet Pathumsoot Naphan Benchasattabuse Ryosuke Satoh Michal Hajdusek Rodney Van Meter Sujin Suwanna |
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Poramet Pathumsoot |
title |
Optimizing Link-Level Entanglement Generation in Quantum Networks with Unequal Link Lengths |
title_short |
Optimizing Link-Level Entanglement Generation in Quantum Networks with Unequal Link Lengths |
title_full |
Optimizing Link-Level Entanglement Generation in Quantum Networks with Unequal Link Lengths |
title_fullStr |
Optimizing Link-Level Entanglement Generation in Quantum Networks with Unequal Link Lengths |
title_full_unstemmed |
Optimizing Link-Level Entanglement Generation in Quantum Networks with Unequal Link Lengths |
title_sort |
optimizing link-level entanglement generation in quantum networks with unequal link lengths |
publishDate |
2022 |
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https://repository.li.mahidol.ac.th/handle/123456789/76715 |
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1763495789420609536 |