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Signatures of the Optical Stark Effect on Entangled Photon Pairs from Resonantly Pumped Quantum Dots.
Basso Basset, F; Rota, M B; Beccaceci, M; Krieger, T M; Buchinger, Q; Neuwirth, J; Huet, H; Stroj, S; Covre da Silva, S F; Ronco, G; Schimpf, C; Höfling, S; Huber-Loyola, T; Rastelli, A; Trotta, R.
Afiliación
  • Basso Basset F; Department of Physics, Sapienza University of Rome, 00185 Rome, Italy.
  • Rota MB; Department of Physics, Sapienza University of Rome, 00185 Rome, Italy.
  • Beccaceci M; Department of Physics, Sapienza University of Rome, 00185 Rome, Italy.
  • Krieger TM; Institute of Semiconductor and Solid State Physics, Johannes Kepler University, 4040 Linz, Austria.
  • Buchinger Q; Technical Physics, University of Würzburg, 97074 Würzburg, Germany.
  • Neuwirth J; Department of Physics, Sapienza University of Rome, 00185 Rome, Italy.
  • Huet H; Department of Physics, Sapienza University of Rome, 00185 Rome, Italy.
  • Stroj S; Forschungszentrum Mikrotechnik, FH Vorarlberg, 6850 Dornbirn, Austria.
  • Covre da Silva SF; Institute of Semiconductor and Solid State Physics, Johannes Kepler University, 4040 Linz, Austria.
  • Ronco G; Department of Physics, Sapienza University of Rome, 00185 Rome, Italy.
  • Schimpf C; Institute of Semiconductor and Solid State Physics, Johannes Kepler University, 4040 Linz, Austria.
  • Höfling S; Technical Physics, University of Würzburg, 97074 Würzburg, Germany.
  • Huber-Loyola T; Technical Physics, University of Würzburg, 97074 Würzburg, Germany.
  • Rastelli A; Institute of Semiconductor and Solid State Physics, Johannes Kepler University, 4040 Linz, Austria.
  • Trotta R; Department of Physics, Sapienza University of Rome, 00185 Rome, Italy.
Phys Rev Lett ; 131(16): 166901, 2023 Oct 20.
Article en En | MEDLINE | ID: mdl-37925701
ABSTRACT
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-to-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.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2023 Tipo del documento: Article País de afiliación: Italia
Texto completo
Añadir a Mi BVS
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2023 Tipo del documento: Article País de afiliación: Italia