| Texto completo | |
| Autor(es): |
Schnepper, Bruno P.
;
Cius, Danilo
;
Andrade, Fabiano M.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Physics A-Mathematical and Theoretical; v. 57, n. 50, p. 16-pg., 2024-12-13. |
| Resumo | |
Nonclassical states are an important class of states in quantum mechanics, particularly for applications in quantum information theory. Optomechanical systems are invaluable platforms for exploring and harnessing these states. In this study, we focus on a mirror-in-the-middle optomechanical system. In the absence of losses, a separable state, composed of the product of coherent states, evolves into an entangled state. Furthermore, we demonstrate that generating a two-mode Schr & ouml;dinger-cat state depends on the optomechanical coupling. Additionally, when the optical modes are uncoupled from the mechanical mode, we find no entanglement for certain nonzero optomechanical coupling intensities. We exactly solve the Gorini-Kossalokowinki-Sudarshan-Lindblad master equation, highlighting the direct influence of the reservoir on the dynamics when mechanical losses are considered. Then, we discuss vacuum one-photon superposition states to obtain exact entanglement dynamics using concurrence as a quantifier. Our results show that mechanical losses in the mirror attenuate the overall entanglement of the system. (AU) | |
| Processo FAPESP: | 20/06454-7 - Não-localidade e contextualidade como recurso para informação quântica, computação quântica e certificação de dispositivos quânticos |
| Beneficiário: | Bárbara Lopes Amaral |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |