Numerical implementation of quantum control protocols based on “on-off” stages for a single qubit

In this paper the stability of specific quantum control protocols is analyzed through a simu­lation. Two-level quantum systems driven by resonant external fields are studied. The focus of attention are those protocols requiring long sequences of external pulses. It is proven that these techniques ar...

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Detalhes bibliográficos
Autor: Medina, Julieta
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2013
País:México
Recursos:UNIVERSIDAD DE GUANAJUATO
Repositório:Acta Universitaria
Idioma:espanhol
OAI Identifier:oai:www.actauniversitaria.ugto.mx:article/452
Acesso em linha:https://www.actauniversitaria.ugto.mx/index.php/acta/article/view/452
Access Level:Acceso aberto
Palavra-chave:Quantum control
noise
Rabi rotations
quantum gates
quantum algorithms.
Control cuántico
ruido
rotaciones de Rabi
compuertas cuánticas
algoritmos cuánticos.
Descrição
Resumo:In this paper the stability of specific quantum control protocols is analyzed through a simu­lation. Two-level quantum systems driven by resonant external fields are studied. The focus of attention are those protocols requiring long sequences of external pulses. It is proven that these techniques are prone to cumulative error. Inspired by the methodology of the treatment of noise in signal processing, noise effects of practical implementations of single qubit quantum algorithms are also considered. The numerical results are consistent when compared to experimental data previously reported.