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DTSTART;TZID=America/Sao_Paulo:20220706T153000
DTEND;TZID=America/Sao_Paulo:20220706T173000
DTSTAMP:20260714T160450
CREATED:20220630T195626Z
LAST-MODIFIED:20220630T195626Z
UID:19340-1657121400-1657128600@www.if.ufrj.br
SUMMARY:Seminários da Óptica e Informação Quântica – Vitalie Eremeev
DESCRIPTION:High-fidelity synchronization and transfer of quantum states in\noptomechanical hybrid systems\n\nVitalie Eremeev\n\n(Facultad de Ingeniería y Ciencias\, Universidad Diego Portales\, Santiago\, Chile) \n  \n\nIn a hybrid quantum system\, consisting of a three-level atom\, cavity and mechanical oscillator (see Fig. 1a)\, we study the effects of synchronization and transfer of nonclassical states between the mechanical oscillator and the cavity field. As results\, we show that an initially thermalized mechanical oscillator when connected to a squeezed bath\, it evolves to a squeezed state which in steady state is synchronized with the cavity mode (see Fig. 1b). On the other hand\, if the mechanical oscillator is initially prepared in a nonclassical state\, e.g. squeezed and Schroedinger’s cat states\, while the cavity is in a thermal state\, then a periodic transfer between the mechanical oscillator and cavity mode occurs for given interaction times. As qualitative results\, we prove that the synchronization and transfer of the quantum states are feasible with high fidelity. These effects are realizable in the regime of weak optomechanical coupling; however the fidelity can be improved by enhancing the optomechanical and Jaynes-Cummings couplings and reducing the loss rates\, which is technologically attainable nowadays. \n\n\n\n\n Reference: H. Molinares\, V. Eremeev\, M. Orszag\, Phys. Rev. A 105\, 033708 (2022).\n\n  \n  \n\n\n\n\n\n  \n  \n  \n  \n  \n\nGrupo de Óptica e Informação Quântica\nInstituto de Física UFRJ \n\n
URL:https://www.if.ufrj.br/evento/seminarios-da-optica-e-informacao-quantica-vitalie-eremeev/
CATEGORIES:IF - Seminários,IF - Seminários de Grupo
ORGANIZER;CN="Grupo%20de%20%C3%93ptica%20e%20Informa%C3%A7%C3%A3o%20Qu%C3%A2ntica":MAILTO:nicacio@if.ufrj.br
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