Communication scenario enables robust self-testing of n-party Greenberger-Horne-Zeilinger basis measurements
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866908745776234496 |
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| author | Bhaumik, Barnik Ray, Sagnik Saha, Debashis |
| author_facet | Bhaumik, Barnik Ray, Sagnik Saha, Debashis |
| contents | Entangled basis measurements play a crucial role in distributing quantum entanglement between parties across a quantum network. In this work, we adopt a semi-device-independent approach that enables the self-testing of n-qubit Greenberger-Horne-Zeilinger (GHZ) basis measurements without requiring shared entanglement between distant parties. Our method relies solely on input-output statistics from a communication scenario involving n spatially separated senders, each receiving two bits of input, and a single receiver with no input. We analyze the robustness of the proposed self-testing protocol. Additionally, we introduce a protocol for robust self-testing of the three-outcome partial Bell basis measurement that is easily implementable in an optical setup. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_21178 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Communication scenario enables robust self-testing of n-party Greenberger-Horne-Zeilinger basis measurements Bhaumik, Barnik Ray, Sagnik Saha, Debashis Quantum Physics Entangled basis measurements play a crucial role in distributing quantum entanglement between parties across a quantum network. In this work, we adopt a semi-device-independent approach that enables the self-testing of n-qubit Greenberger-Horne-Zeilinger (GHZ) basis measurements without requiring shared entanglement between distant parties. Our method relies solely on input-output statistics from a communication scenario involving n spatially separated senders, each receiving two bits of input, and a single receiver with no input. We analyze the robustness of the proposed self-testing protocol. Additionally, we introduce a protocol for robust self-testing of the three-outcome partial Bell basis measurement that is easily implementable in an optical setup. |
| title | Communication scenario enables robust self-testing of n-party Greenberger-Horne-Zeilinger basis measurements |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2508.21178 |