Fiber-coupled broadband quantum memory for polarization-encoded photonic qubits
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866909863966146560 |
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| author | Cheng, Sandra Evans, Carson Pittman, Todd |
| author_facet | Cheng, Sandra Evans, Carson Pittman, Todd |
| contents | Various near-term quantum networking applications will benefit from low-loss, fiber-coupled photonic quantum memory devices with high efficiencies. We demonstrate a fiber-coupled loop-and-switch quantum memory platform with a pass-through efficiency of ~54% and an overall storage efficiency that scales as ~0.5^(N+1) where N is the number of storage cycles. We highlight the trade-off between memory lifetime and qubit accessibility in this platform by using two different storage cycle times of ~40 nanoseconds and ~0.5 microseconds, and demonstrate high-fidelity storage and retrieval of ultra-broadband single-photon polarization qubits in both cases. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_10638 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Fiber-coupled broadband quantum memory for polarization-encoded photonic qubits Cheng, Sandra Evans, Carson Pittman, Todd Quantum Physics Various near-term quantum networking applications will benefit from low-loss, fiber-coupled photonic quantum memory devices with high efficiencies. We demonstrate a fiber-coupled loop-and-switch quantum memory platform with a pass-through efficiency of ~54% and an overall storage efficiency that scales as ~0.5^(N+1) where N is the number of storage cycles. We highlight the trade-off between memory lifetime and qubit accessibility in this platform by using two different storage cycle times of ~40 nanoseconds and ~0.5 microseconds, and demonstrate high-fidelity storage and retrieval of ultra-broadband single-photon polarization qubits in both cases. |
| title | Fiber-coupled broadband quantum memory for polarization-encoded photonic qubits |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2505.10638 |