Signatures of the Optical Stark Effect on Entangled Photon Pairs from Resonantly-Pumped Quantum Dots
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arXiv
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| Autores principales: | , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2022
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| _version_ | 1866916103587889152 |
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| author | Basset, Francesco Basso Rota, Michele B. Beccaceci, Mattia Krieger, Tobias M. Buchinger, Quirin Neuwirth, Julia Huet, Hêlio Stroj, Sandra da Silva, Saimon F. Covre Ronco, Giuseppe Schimpf, Christian Höfling, Sven Huber-Loyola, Tobias Rastelli, Armando Trotta, Rinaldo |
| author_facet | Basset, Francesco Basso Rota, Michele B. Beccaceci, Mattia Krieger, Tobias M. Buchinger, Quirin Neuwirth, Julia Huet, Hêlio Stroj, Sandra da Silva, Saimon F. Covre Ronco, Giuseppe Schimpf, Christian Höfling, Sven Huber-Loyola, Tobias Rastelli, Armando Trotta, Rinaldo |
| contents | Two-photon resonant excitation of the biexciton-exciton cascade in a quantum dot generates highly polarization-entangled photon pairs in a near-deterministic way. However, the ultimate level of achievable entanglement is still debated. Here, we observe the impact of the laser-induced AC-Stark effect on the quantum dot emission spectra and on entanglement. For increasing pulse-duration/lifetime ratios and pump powers, decreasing values of concurrence are recorded. Nonetheless, additional contributions are still required to fully account for the observed below-unity concurrence. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2212_07087 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Signatures of the Optical Stark Effect on Entangled Photon Pairs from Resonantly-Pumped Quantum Dots Basset, Francesco Basso Rota, Michele B. Beccaceci, Mattia Krieger, Tobias M. Buchinger, Quirin Neuwirth, Julia Huet, Hêlio Stroj, Sandra da Silva, Saimon F. Covre Ronco, Giuseppe Schimpf, Christian Höfling, Sven Huber-Loyola, Tobias Rastelli, Armando Trotta, Rinaldo Quantum Physics Mesoscale and Nanoscale Physics Two-photon resonant excitation of the biexciton-exciton cascade in a quantum dot generates highly polarization-entangled photon pairs in a near-deterministic way. However, the ultimate level of achievable entanglement is still debated. Here, we observe the impact of the laser-induced AC-Stark effect on the quantum dot emission spectra and on entanglement. For increasing pulse-duration/lifetime ratios and pump powers, decreasing values of concurrence are recorded. Nonetheless, additional contributions are still required to fully account for the observed below-unity concurrence. |
| title | Signatures of the Optical Stark Effect on Entangled Photon Pairs from Resonantly-Pumped Quantum Dots |
| topic | Quantum Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2212.07087 |