Bosonic quantum error correction with microwave cavities for quantum repeaters
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866914158047395840 |
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| author | Chelluri, S. Siddardha Sharma, Sanchar Schmidt, Frank Kusminskiy, Silvia Viola van Loock, Peter |
| author_facet | Chelluri, S. Siddardha Sharma, Sanchar Schmidt, Frank Kusminskiy, Silvia Viola van Loock, Peter |
| contents | Long-distance quantum communication necessitates the use of quantum repeaters, which typically include highly coherent quantum memories. We provide a theoretical analysis of the secret key rates for a quantum repeater system incorporating bosonic error correction and memory components. Specifically, we focus on the application of Binomial codes for two repeater segments. Using these codes, our investigation aims to suppress memory loss errors that commonly affect systems such as atoms and microwave cavities, in contrast to dephasing errors in single-spin memories. We further discuss a physical implementation of such a quantum repeater comprising a microwave cavity and a superconducting transmon, capable of state engineering with high fidelities ($>97\%$) and logical Bell state measurements for successful entanglement swapping. As an alternative approach, we also discuss a realization in the all-optical domain. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_21569 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Bosonic quantum error correction with microwave cavities for quantum repeaters Chelluri, S. Siddardha Sharma, Sanchar Schmidt, Frank Kusminskiy, Silvia Viola van Loock, Peter Quantum Physics Long-distance quantum communication necessitates the use of quantum repeaters, which typically include highly coherent quantum memories. We provide a theoretical analysis of the secret key rates for a quantum repeater system incorporating bosonic error correction and memory components. Specifically, we focus on the application of Binomial codes for two repeater segments. Using these codes, our investigation aims to suppress memory loss errors that commonly affect systems such as atoms and microwave cavities, in contrast to dephasing errors in single-spin memories. We further discuss a physical implementation of such a quantum repeater comprising a microwave cavity and a superconducting transmon, capable of state engineering with high fidelities ($>97\%$) and logical Bell state measurements for successful entanglement swapping. As an alternative approach, we also discuss a realization in the all-optical domain. |
| title | Bosonic quantum error correction with microwave cavities for quantum repeaters |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2503.21569 |