Abstract
In this study, a plasmonic system coupled to a quantum dot is defined to generate the entanglement between two non-simultaneous emitted output modes. The quantum dot with three energy levels creates two different transition rates by which non-simultaneous photons are emitted. Thus, it seems that the entanglement between two emitted modes is forbidden. However, the simulation results show the entanglement between the output modes. It is because the original transition rates of the quantum dot are modified due to the lattice plasmon coupling effect. It means that the effective transition rate affected by the lattice plasmon plays a key role. The lattice plasmon coupling to quantum dot at some locations leads to a simultaneous transition by which the entanglement between output modes is established. The entangled output modes refer to the entangled photons with a specific frequency (e.g., the emission frequency). This unique behavior is theoretically discussed and the results show that using the lattice plasmon can change the transition rates by which the two emitted modes become entangled.
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The data generated during and/or analyzed during the current study are available from the corresponding author upon reasonable request.
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Sude Hatam contributed to the study’s conception and manuscript preparation; Ahmad Salmanogli contributed to the design, simulation, and results analysis; H. Selcuk Gecim contributed to the editing and manuscript preparation.
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Hatem, S., Salmanogli, A. & Gecim, H.S. Quantum dot transition rate modifying by coupling to lattice plasmon. Opt Quant Electron 55, 805 (2023). https://doi.org/10.1007/s11082-023-05056-5
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DOI: https://doi.org/10.1007/s11082-023-05056-5