Quantum State Transfer between Superconducting Cavities via Exchange-Free Interactions
We propose and experimentally demonstrate a novel protocol for transferring quantum states between superconducting cavities. This approach utilizes continuous two-mode squeezing interactions to generate entanglement without the exchange of any carrier photons. In contrast to the discrete operations of entanglement and Bell-state measurement in quantum teleportation, our scheme is symmetric and continuous. We experimentally realize coherent and bidirectional transfer of arbitrary quantum states, including bosonic quantum error correction codes. Our results offer new insights into the quantum state transfer and quantum teleportation. In particular, our demonstration validates a new approach to realize quantum transducers and might find applications in a wide range of physical platforms.
Authors
- Chang‐Ling Zou (ORCID: https://orcid.org/0000-0003-2484-7292)
- Luyan Sun (ORCID: https://orcid.org/0000-0003-4419-5674)
- Yipu Song (ORCID: https://orcid.org/0000-0003-0221-9607)
- Xiaoxuan Pan
- Yifang Xu (ORCID: https://orcid.org/0009-0001-3738-789X)
- Weizhou Cai (ORCID: https://orcid.org/0000-0002-0650-0861)
- Haifeng Yu (ORCID: https://orcid.org/0000-0002-5963-8266)
- Ziyue Hua (ORCID: https://orcid.org/0000-0002-4860-8803)
- Xiaogang Li (ORCID: https://orcid.org/0000-0001-9255-7559)
- Hongyi Zhang (ORCID: https://orcid.org/0000-0002-2463-3967)
- Weiting Wang (ORCID: https://orcid.org/0000-0002-1510-772X)
- Guangming Xue (ORCID: https://orcid.org/0000-0001-7156-2017)
- Jie Zhou (ORCID: https://orcid.org/0009-0009-6880-7058)
Institutions
- University of Science and Technology of China (CN)
- Hefei University (CN)
- Beijing Academy of Quantum Information Sciences (CN)
- Tsinghua University (CN)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2024-11-26
- DOI
- https://doi.org/10.1103/physrevlett.133.220801
- Citations
- 4
- Primary Topic
- Quantum Information and Cryptography
- Type
- article
- Field-Weighted Citation Impact
- 1.39
Funders
- National Natural Science Foundation of China
- University of Science and Technology of China
- National Key Research and Development Program of China
- Fundamental Research Funds for the Central Universities
- USTC Center for Micro- and Nanoscale Research and Fabrication