Teleportation with Embezzling Catalysts
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arXiv
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| Format: | Preprint |
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2024
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| author | Xing, Junjing Li, Yuqi Qu, Dengke Xiao, Lei Fan, Zhaobing Ma, Haitao Xue, Peng Bharti, Kishor Koh, Dax Enshan Xiao, Yunlong |
| author_facet | Xing, Junjing Li, Yuqi Qu, Dengke Xiao, Lei Fan, Zhaobing Ma, Haitao Xue, Peng Bharti, Kishor Koh, Dax Enshan Xiao, Yunlong |
| contents | Quantum teleportation is the process of transferring quantum information using classical communication and pre-shared entanglement. This process can benefit from the use of catalysts, which are ancillary entangled states that can enhance teleportation without being consumed. While chemical catalysts undergoing deactivation invariably exhibit inferior performance compared to those unaffected by deactivation, quantum catalysts, termed embezzling catalysts, that are subject to deactivation, may surprisingly outperform their non-deactivating counterparts. In this work, we present teleportation protocols with embezzling catalyst that can achieve arbitrarily high fidelity, namely the teleported state can be made arbitrarily close to the original state, with finite-dimensional embezzling catalysts. We show that some embezzling catalysts are universal, meaning that they can improve the teleportation fidelity for any pre-shared entanglement. We also explore methods to reduce the dimension of catalysts without increasing catalyst consumption, an essential step towards realizing quantum catalysis in practice. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_14386 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Teleportation with Embezzling Catalysts Xing, Junjing Li, Yuqi Qu, Dengke Xiao, Lei Fan, Zhaobing Ma, Haitao Xue, Peng Bharti, Kishor Koh, Dax Enshan Xiao, Yunlong Quantum Physics Quantum teleportation is the process of transferring quantum information using classical communication and pre-shared entanglement. This process can benefit from the use of catalysts, which are ancillary entangled states that can enhance teleportation without being consumed. While chemical catalysts undergoing deactivation invariably exhibit inferior performance compared to those unaffected by deactivation, quantum catalysts, termed embezzling catalysts, that are subject to deactivation, may surprisingly outperform their non-deactivating counterparts. In this work, we present teleportation protocols with embezzling catalyst that can achieve arbitrarily high fidelity, namely the teleported state can be made arbitrarily close to the original state, with finite-dimensional embezzling catalysts. We show that some embezzling catalysts are universal, meaning that they can improve the teleportation fidelity for any pre-shared entanglement. We also explore methods to reduce the dimension of catalysts without increasing catalyst consumption, an essential step towards realizing quantum catalysis in practice. |
| title | Teleportation with Embezzling Catalysts |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2406.14386 |