Direct Manipulation of Biphoton Generation From the non‐Hermitian Nature of Light‐matter Interaction
Abstract While biphoton generation holds significant importance in quantum entanglement and quantum technology, its dynamics involving non‐Hermitian characteristics have experimentally been untouched so far. Nevertheless, it is found that the non‐Hermitian features induced by the atomic coherence can be well employed for the direct control of biphoton generation and entanglement. By harnessing such natural non‐Hermitian interaction, a method is devised to expand a non‐Hermitian Hao biphoton generation processes. It is experimentally demonstrated such biphoton correlation can be adjusted within an unprecedentedly wide range, ranging from Rabi oscillation to antibunching‐exponential‐decay. Typically, the exceptional point at the transition boundary between the two regimes is distinctly observed.
Authors
- Liu Fu (ORCID: https://orcid.org/0000-0001-9674-452X)
- Yin Cai (ORCID: https://orcid.org/0000-0001-6781-7857)
- Feng Zhou (ORCID: https://orcid.org/0000-0002-1514-7393)
- Lei Zhang (ORCID: https://orcid.org/0000-0002-4880-824X)
- Feng Li (ORCID: https://orcid.org/0000-0003-2862-2760)
- Kangkang Li (ORCID: https://orcid.org/0000-0003-3079-6225)
- Yanpeng Zhang (ORCID: https://orcid.org/0000-0002-0954-7681)
- Jin Yan (ORCID: https://orcid.org/0000-0002-3068-3274)
Institutions
- Peking University (CN)
- State Key Laboratory of Artificial Microstructure and Mesoscopic Physics
- Xi'an Jiaotong University (CN)
Publication Details
- Journal
- Laser & Photonics Review
- Published
- 2025-02-27
- DOI
- https://doi.org/10.1002/lpor.202402149
- Citations
- 7
- Primary Topic
- Quantum Mechanics and Non-Hermitian Physics
- Type
- article
- Field-Weighted Citation Impact
- 8.73
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China
- Shaanxi Key Science and Technology Innovation Team Project