Statistical analysis of Multipath Entanglement Purification in Quantum Networks
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866916959491194880 |
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| author | Bala, Rajni Mondal, Md Sohel Santra, Siddhartha |
| author_facet | Bala, Rajni Mondal, Md Sohel Santra, Siddhartha |
| contents | In quantum networks, a set of entangled states distributed over multiple, alternative, distinct paths between a pair of source-destination nodes can be purified to obtain a higher fidelity entangled state between the nodes. This multipath entanglement purification (MP-EP) strategy can exploit the network's complex structure to strengthen the entanglement connection between node pairs separated by appropriate graph distances. We investigate the network scenarios in which MP-EP outperforms entanglement distribution over single network paths utilising a statistical model of a quantum network and find that MP-EP can be an effective entanglement distribution strategy over a range of node separations determined by the average edge fidelities and probabilities of the network. We find that MP-EP can bost the entanglement connection between suitably separated node pairs to reach fidelities sufficient for a given quantum task thereby increasing the functionality of a quantum network. Further, we provide statistical criteria in terms of network parameters that can determine the regions of the network where MP-EP can be a useful entanglement distribution strategy. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_09011 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Statistical analysis of Multipath Entanglement Purification in Quantum Networks Bala, Rajni Mondal, Md Sohel Santra, Siddhartha Quantum Physics In quantum networks, a set of entangled states distributed over multiple, alternative, distinct paths between a pair of source-destination nodes can be purified to obtain a higher fidelity entangled state between the nodes. This multipath entanglement purification (MP-EP) strategy can exploit the network's complex structure to strengthen the entanglement connection between node pairs separated by appropriate graph distances. We investigate the network scenarios in which MP-EP outperforms entanglement distribution over single network paths utilising a statistical model of a quantum network and find that MP-EP can be an effective entanglement distribution strategy over a range of node separations determined by the average edge fidelities and probabilities of the network. We find that MP-EP can bost the entanglement connection between suitably separated node pairs to reach fidelities sufficient for a given quantum task thereby increasing the functionality of a quantum network. Further, we provide statistical criteria in terms of network parameters that can determine the regions of the network where MP-EP can be a useful entanglement distribution strategy. |
| title | Statistical analysis of Multipath Entanglement Purification in Quantum Networks |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2502.09011 |