All-photonic entanglement swapping with remote quantum dots
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , , , , , , , , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2025
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866917138794545152 |
|---|---|
| author | Beccaceci, Mattia Ronco, Giuseppe Cienzo, Fabrizio Bassetti, Pierpaolo Laneve, Alessandro Basset, Francesco Basso Krieger, Tobias M. Buchinger, Qurin Salusti, Francesco Damasceno, Barbara Souza Kuhn, Silke da Silva, Saimon F. Covre Stroj, Sandra Jöns, Klaus D. Höfling, Sven Huber-Loyola, Tobias Rastelli, Armando Rota, Michele B. Trotta, Rinaldo |
| author_facet | Beccaceci, Mattia Ronco, Giuseppe Cienzo, Fabrizio Bassetti, Pierpaolo Laneve, Alessandro Basset, Francesco Basso Krieger, Tobias M. Buchinger, Qurin Salusti, Francesco Damasceno, Barbara Souza Kuhn, Silke da Silva, Saimon F. Covre Stroj, Sandra Jöns, Klaus D. Höfling, Sven Huber-Loyola, Tobias Rastelli, Armando Rota, Michele B. Trotta, Rinaldo |
| contents | Entanglement swapping is a protocol that details how to create entanglement between previously uncorrelated particles. Its all-photonic version - mediated by the interference of photon pairs generated by separate quantum systems-finds disparate applications in quantum networks. So far, all-photonic entanglement swapping between remote systems has been implemented only using sources that operate probabilistically. However, the scaling up of quantum networks requires deterministic quantum emitters that do not suffer from a trade-off between degree of entanglement and photonpair generation rate. Here, we demonstrate all-photonic entanglement swapping using photon-pairs generated by two separate GaAs quantum dots. The emitters are deterministically embedded in hybrid semiconductor-piezoelectric devices that make the entangled-photons from two dissimilar quantum dots nearly identical. Entanglement swapping is demonstrated with a fidelity as high as 0.71(2), more than 10 standard deviations above the classical limit. The experimental data are quantitatively explained by a theoretical model that also suggests how to boost the protocol performances. Our work opens the path to the exploitation of quantum dot entangled-photon sources in quantum repeater networks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_10651 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | All-photonic entanglement swapping with remote quantum dots Beccaceci, Mattia Ronco, Giuseppe Cienzo, Fabrizio Bassetti, Pierpaolo Laneve, Alessandro Basset, Francesco Basso Krieger, Tobias M. Buchinger, Qurin Salusti, Francesco Damasceno, Barbara Souza Kuhn, Silke da Silva, Saimon F. Covre Stroj, Sandra Jöns, Klaus D. Höfling, Sven Huber-Loyola, Tobias Rastelli, Armando Rota, Michele B. Trotta, Rinaldo Quantum Physics Optics Entanglement swapping is a protocol that details how to create entanglement between previously uncorrelated particles. Its all-photonic version - mediated by the interference of photon pairs generated by separate quantum systems-finds disparate applications in quantum networks. So far, all-photonic entanglement swapping between remote systems has been implemented only using sources that operate probabilistically. However, the scaling up of quantum networks requires deterministic quantum emitters that do not suffer from a trade-off between degree of entanglement and photonpair generation rate. Here, we demonstrate all-photonic entanglement swapping using photon-pairs generated by two separate GaAs quantum dots. The emitters are deterministically embedded in hybrid semiconductor-piezoelectric devices that make the entangled-photons from two dissimilar quantum dots nearly identical. Entanglement swapping is demonstrated with a fidelity as high as 0.71(2), more than 10 standard deviations above the classical limit. The experimental data are quantitatively explained by a theoretical model that also suggests how to boost the protocol performances. Our work opens the path to the exploitation of quantum dot entangled-photon sources in quantum repeater networks. |
| title | All-photonic entanglement swapping with remote quantum dots |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2512.10651 |