Multipartite entanglement encoded in the photon-number basis by sequential excitation of a three-level system
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.
- Publication:
-
Optics Letters
- Pub Date:
- December 2023
- DOI:
- 10.1364/OL.506403
- arXiv:
- arXiv:2304.08896
- Bibcode:
- 2023OptL...48.6332S
- Keywords:
-
- Quantum Physics
- E-Print:
- 05 pages and 04 figures