Multipartite entanglement encoded in the photon-number basis by sequential excitation of a three-level system

• URL: http://arxiv.org/abs/2304.08896v2
• Date: Sat, 2 Dec 2023 22:43:09 GMT
• Title: Multipartite entanglement encoded in the photon-number basis by sequential excitation of a three-level system
• Authors: Alan C. Santos, Christian Schneider, Romain Bachelard, Ana Predojevi\'c, Carlos Ant\'on-Solanas
• Abstract summary: We propose a scheme to generate entanglement encoded in the photon-number basis, via a sequential resonant two-photon excitation of a three-level system. We apply it to the specific case of a quantum dot three-level system, which can emit a photon pair through a biexciton-exciton cascade.
• Score: 0.06749750044497731
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We propose a general scheme to generate entanglement encoded in the photon-number basis, via a sequential resonant two-photon excitation of a three-level system. We apply it to the specific case of a quantum dot three-level system, which can emit a photon pair through a biexciton-exciton cascade. The state generated in our scheme constitutes a tool for secure communication, as the multipartite correlations present in the produced state may provide an enhanced rate of secret communication with respect to a perfect GHZ state.

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