Telecommunications fiber-optic and free-space quantum local area networks at the Air Force Research Laboratory
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| Formato: | Preprint |
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2025
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| author | Sheridan, Erin Barton, Nicholas J. Birrittella, Richard Nehra, Vedansh Smith, Zachary Tison, Christopher Smith, Amos Matthew Dharanibalan, Shashank Bedi, Vijit Hucul, David Kyle, Benjamin Nadeau, Christopher Draper, Mary Heinig, John Faulkner, Scott Scales, Randal Brownell, Andrew M. Preble, Stefan Schneeloch, James Schwab, Samuel Campbell, Daniel Sica, Derrick Ricci, Peter Nikulin, Vladimir Malowicki, John Hall, Jacob Fanto, Michael LaHaye, Matthew D. Wessing, Laura Alsing, Paul M. Soderberg, Kathy-Anne Telesca, Donald |
| author_facet | Sheridan, Erin Barton, Nicholas J. Birrittella, Richard Nehra, Vedansh Smith, Zachary Tison, Christopher Smith, Amos Matthew Dharanibalan, Shashank Bedi, Vijit Hucul, David Kyle, Benjamin Nadeau, Christopher Draper, Mary Heinig, John Faulkner, Scott Scales, Randal Brownell, Andrew M. Preble, Stefan Schneeloch, James Schwab, Samuel Campbell, Daniel Sica, Derrick Ricci, Peter Nikulin, Vladimir Malowicki, John Hall, Jacob Fanto, Michael LaHaye, Matthew D. Wessing, Laura Alsing, Paul M. Soderberg, Kathy-Anne Telesca, Donald |
| contents | As quantum computing, sensing, timing, and networking technologies mature, quantum network testbeds are being deployed across the United States and around the world. To support the Air Force Research Laboratory (AFRL)'s mission of building heterogeneous quantum networks, we report on the development of Quantum Local Area Networks (QLANs) operating at telecommunications-band frequencies. The multi-node, reconfigurable QLANs include deployed optical fiber and free-space links connected to pristine laboratory environments and rugged outdoor test facilities. Each QLAN is tailored to distinct operating conditions and use cases, with unique environmental characteristics and capabilities. We present network topologies and in-depth link characterization data for three such networks. Using photonic integrated circuit-based sources of entangled photons, we demonstrate entanglement distribution of time-energy Bell states across deployed fiber in a wooded environment. The high quality of the entanglement is confirmed by a Clauser-Horne-Shimony-Holt inequality violation of $S=2.717$, approaching the theoretical maximum of $S=2.828$. We conclude with a discussion of future work aimed at expanding QLAN functionality and enabling entanglement distribution between heterogeneous matter-based quantum systems, including superconducting qubits and trapped ions. These results underscore the practical viability of field-deployable, qubit-agnostic quantum network infrastructure. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_01030 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Telecommunications fiber-optic and free-space quantum local area networks at the Air Force Research Laboratory Sheridan, Erin Barton, Nicholas J. Birrittella, Richard Nehra, Vedansh Smith, Zachary Tison, Christopher Smith, Amos Matthew Dharanibalan, Shashank Bedi, Vijit Hucul, David Kyle, Benjamin Nadeau, Christopher Draper, Mary Heinig, John Faulkner, Scott Scales, Randal Brownell, Andrew M. Preble, Stefan Schneeloch, James Schwab, Samuel Campbell, Daniel Sica, Derrick Ricci, Peter Nikulin, Vladimir Malowicki, John Hall, Jacob Fanto, Michael LaHaye, Matthew D. Wessing, Laura Alsing, Paul M. Soderberg, Kathy-Anne Telesca, Donald Quantum Physics As quantum computing, sensing, timing, and networking technologies mature, quantum network testbeds are being deployed across the United States and around the world. To support the Air Force Research Laboratory (AFRL)'s mission of building heterogeneous quantum networks, we report on the development of Quantum Local Area Networks (QLANs) operating at telecommunications-band frequencies. The multi-node, reconfigurable QLANs include deployed optical fiber and free-space links connected to pristine laboratory environments and rugged outdoor test facilities. Each QLAN is tailored to distinct operating conditions and use cases, with unique environmental characteristics and capabilities. We present network topologies and in-depth link characterization data for three such networks. Using photonic integrated circuit-based sources of entangled photons, we demonstrate entanglement distribution of time-energy Bell states across deployed fiber in a wooded environment. The high quality of the entanglement is confirmed by a Clauser-Horne-Shimony-Holt inequality violation of $S=2.717$, approaching the theoretical maximum of $S=2.828$. We conclude with a discussion of future work aimed at expanding QLAN functionality and enabling entanglement distribution between heterogeneous matter-based quantum systems, including superconducting qubits and trapped ions. These results underscore the practical viability of field-deployable, qubit-agnostic quantum network infrastructure. |
| title | Telecommunications fiber-optic and free-space quantum local area networks at the Air Force Research Laboratory |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2508.01030 |