Progress towards efficient 4-level photon echo memories
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866911100983836672 |
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| author | Stuart, James Smith, Kieran Hedges, Morgan Ahlefeldt, Rose Sellars, Matthew |
| author_facet | Stuart, James Smith, Kieran Hedges, Morgan Ahlefeldt, Rose Sellars, Matthew |
| contents | Quantum memories could benefit many devices in quantum information processing. For a quantum to be useful in real-world applications, the quantum memory must have a high recall efficiency. Here we demonstrate an efficient (up to 80%) spin-storage quantum memory in Er:YSO, using the 4-level rephased amplified spontaneous emission protocol. We show non-classical correlations between the ASE and RASE fields produced by the quantum memory. Also, we demonstrate the storage of 70 temporal modes, with a write time of 150 us, and a storage time of 25 us. Finally, a clear pathway is presented to improve the efficiency, storage time, and mode capacity. Such a device would have applications in quantum networking and measurement-based quantum computing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_12503 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Progress towards efficient 4-level photon echo memories Stuart, James Smith, Kieran Hedges, Morgan Ahlefeldt, Rose Sellars, Matthew Quantum Physics Quantum memories could benefit many devices in quantum information processing. For a quantum to be useful in real-world applications, the quantum memory must have a high recall efficiency. Here we demonstrate an efficient (up to 80%) spin-storage quantum memory in Er:YSO, using the 4-level rephased amplified spontaneous emission protocol. We show non-classical correlations between the ASE and RASE fields produced by the quantum memory. Also, we demonstrate the storage of 70 temporal modes, with a write time of 150 us, and a storage time of 25 us. Finally, a clear pathway is presented to improve the efficiency, storage time, and mode capacity. Such a device would have applications in quantum networking and measurement-based quantum computing. |
| title | Progress towards efficient 4-level photon echo memories |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2409.12503 |