Ultrafast Optimal Sideband Cooling under Non-Markovian Evolution

A sideband cooling strategy that incorporates () the dynamics induced by structured (non-Markovian) environments in the target and auxiliary systems and (ii) the optimally time-modulated interaction between them is developed. For the context of cavity optomechanics, when non-Markovian dynamics are c...

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Autores:
Tipo de recurso:
Fecha de publicación:
2017
Institución:
Ministerio de Ciencia, Tecnología e Innovación
Repositorio:
Repositorio Minciencias
Idioma:
eng
OAI Identifier:
oai:repositorio.minciencias.gov.co:20.500.14143/34074
Acceso en línea:
http://repositorio.colciencias.gov.co/handle/11146/34074
Palabra clave:
Teoría de Markov
Modelos matemáticos
Teoría cuántica
Números cuánticos
Fuerzas moleculares
Propiedades termodinámicas
Rights
License
http://purl.org/coar/access_right/c_f1cf
Description
Summary:A sideband cooling strategy that incorporates () the dynamics induced by structured (non-Markovian) environments in the target and auxiliary systems and (ii) the optimally time-modulated interaction between them is developed. For the context of cavity optomechanics, when non-Markovian dynamics are considered in the target system, ground state cooling is reached at much faster rates and at a much lower phonon occupation number than previously reported. In contrast to similar current strategies, ground state cooling is reached here for coupling-strength rates that are experimentally accessible for the state-of the-art implementations. After the ultrafast optimal-ground-state- cooling protocol is accomplished, an additional optimal control strategy is considered to maintain the phonon number as close as possible to the one obtained in the cooling procedure. Contrary to the conventional expectation, when non-Markovian dynamics are considered in the auxiliary system, the cfficiency of the cooling protocol is undermined.