Photonic qubit encoding interconversion for heterogeneous quantum networking
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arXiv
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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866911563080794112 |
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| author | Nehra, Vedansh Birrittella, Richard J. Tison, Christopher C. Malia, Benjamin K. Smith, Zachary S. Heberle, Dylan Barton, Nicholas J. Smith, Amos Matthew Brownell, Andrew Fanto, Michael L. Schneeloch, James Sheridan, Erin Hucul, David |
| author_facet | Nehra, Vedansh Birrittella, Richard J. Tison, Christopher C. Malia, Benjamin K. Smith, Zachary S. Heberle, Dylan Barton, Nicholas J. Smith, Amos Matthew Brownell, Andrew Fanto, Michael L. Schneeloch, James Sheridan, Erin Hucul, David |
| contents | Quantum information processing, communication, and sensing networks are being developed with various qubit platforms that use different encoding schemes. Connecting quantum network nodes to distribute entanglement requires matching photon qubit basis encoding. In this work, we implement an interconversion protocol which converts photon qubit encoding from the polarization basis to the time-bin basis, transmits the photons through a transport fiber with large fluctuations in polarization, and converts back to polarization encoding for ease of measurement. This interconversion scheme faithfully transmits a polarization Bell state across the transport fiber by converting sources of infidelity to changes in transmission rate. These results illustrate a practical approach for interfacing distinct qubit platforms to enable modular and flexible operation in heterogeneous quantum networks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_02081 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Photonic qubit encoding interconversion for heterogeneous quantum networking Nehra, Vedansh Birrittella, Richard J. Tison, Christopher C. Malia, Benjamin K. Smith, Zachary S. Heberle, Dylan Barton, Nicholas J. Smith, Amos Matthew Brownell, Andrew Fanto, Michael L. Schneeloch, James Sheridan, Erin Hucul, David Quantum Physics Quantum information processing, communication, and sensing networks are being developed with various qubit platforms that use different encoding schemes. Connecting quantum network nodes to distribute entanglement requires matching photon qubit basis encoding. In this work, we implement an interconversion protocol which converts photon qubit encoding from the polarization basis to the time-bin basis, transmits the photons through a transport fiber with large fluctuations in polarization, and converts back to polarization encoding for ease of measurement. This interconversion scheme faithfully transmits a polarization Bell state across the transport fiber by converting sources of infidelity to changes in transmission rate. These results illustrate a practical approach for interfacing distinct qubit platforms to enable modular and flexible operation in heterogeneous quantum networks. |
| title | Photonic qubit encoding interconversion for heterogeneous quantum networking |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2604.02081 |