Phonon-assisted entanglement between two quantum dots coupled to a plasmonic nanocavity
We theoretically investigate the influence of a phonon bath on entangled generation between two semiconductor quantum dots coupled to a plasmonic nanocavity and coherently driven by an external optical field. Our study reveals that phonons could be useful in a certain range of system parameters wher...
| Autor: | |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/71305 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/71305 |
| Access Level: | acceso abierto |
| Palabra clave: | Entanglement Plasmonic nanocavities Phonon effects Teoría de los quanta Óptica y optometría Óptica física, óptica cuántica 2210.23 Teoría Cuántica 2209 Óptica 2209.19 Óptica física |
| Sumario: | We theoretically investigate the influence of a phonon bath on entangled generation between two semiconductor quantum dots coupled to a plasmonic nanocavity and coherently driven by an external optical field. Our study reveals that phonons could be useful in a certain range of system parameters where a subradian state preparation is possible. We point out that this behavior is due to the fact that phonon environment modify the radiative properties of the two-qubit inducing different decay rates between the collective states of the system. The influence of the factors characteristic of quantum dot systems and plasmonic nanocavity such as energy mismatch in different dots, different plasmonic cavity losses as well as coupling to phonons is analyzed. The entanglement can be controlled via different external parameters such as the cavity detuning, the Rabi frequency of the driving field and the resonance frequency of the QDs. |
|---|