Engineering energy-time entanglement from resonance fluorescence
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2026
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866918410956308480 |
|---|---|
| author | Wang, Jian Liu, Xiu-Bin Zeng, Ziqi Wang, Xu-Jie Antón-Solanas, Carlos Liu, Li Liu, Hanqing Ni, Haiqiao Niu, Zhichuan Wu, Bang Yuan, Zhiliang |
| author_facet | Wang, Jian Liu, Xiu-Bin Zeng, Ziqi Wang, Xu-Jie Antón-Solanas, Carlos Liu, Li Liu, Hanqing Ni, Haiqiao Niu, Zhichuan Wu, Bang Yuan, Zhiliang |
| contents | Resonance fluorescence from a coherently driven two-level emitter is a minimal quantum optical field that combines phase coherence with single-photon-level nonlinearity. Here we show that it can be engineered, using only passive linear interferometry, into energy-time entanglement. By injecting resonance fluorescence from a single quantum dot into an asymmetric Mach--Zehnder interferometer operated near destructive interference of the single-photon component, we generate an output field whose coincidence statistics are dominated by the simultaneous two-photon contribution |2> and the temporally separated photon-pair contribution |11>. In a Franson geometry, these two sectors are resolved on the coincidence-delay axis, and both exhibit high-visibility nonlocal interference fringes and violate the Clauser--Horne--Shimony--Holt Bell inequality. Our results reveal a general route for engineering entanglement from resonance fluorescence using passive optics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_25341 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Engineering energy-time entanglement from resonance fluorescence Wang, Jian Liu, Xiu-Bin Zeng, Ziqi Wang, Xu-Jie Antón-Solanas, Carlos Liu, Li Liu, Hanqing Ni, Haiqiao Niu, Zhichuan Wu, Bang Yuan, Zhiliang Quantum Physics Resonance fluorescence from a coherently driven two-level emitter is a minimal quantum optical field that combines phase coherence with single-photon-level nonlinearity. Here we show that it can be engineered, using only passive linear interferometry, into energy-time entanglement. By injecting resonance fluorescence from a single quantum dot into an asymmetric Mach--Zehnder interferometer operated near destructive interference of the single-photon component, we generate an output field whose coincidence statistics are dominated by the simultaneous two-photon contribution |2> and the temporally separated photon-pair contribution |11>. In a Franson geometry, these two sectors are resolved on the coincidence-delay axis, and both exhibit high-visibility nonlocal interference fringes and violate the Clauser--Horne--Shimony--Holt Bell inequality. Our results reveal a general route for engineering entanglement from resonance fluorescence using passive optics. |
| title | Engineering energy-time entanglement from resonance fluorescence |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2603.25341 |