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Type: Artigo de periódico
Title: Effective cross-Kerr nonlinearity and robust phase gates with trapped ions
Author: Semiao, FL
Vidiella-Barranco, A
Abstract: We derive an effective Hamiltonian that describes a cross-Kerr-type interaction in a system involving a two-level trapped ion coupled to the quantized field inside a cavity. We assume a large detuning between the ion and field (dispersive limit) and this results in an interaction Hamiltonian involving the product of the (bosonic) ionic vibrational motion and field number operators. We also demonstrate the feasibility of operation of a phase gate based on our Hamiltonian. The gate is insensitive to spontaneous emission, an important feature for the practical implementation of quantum computing.
Country: EUA
Editor: American Physical Soc
Citation: Physical Review A. American Physical Soc, v. 72, n. 6, 2005.
Rights: aberto
Identifier DOI: 10.1103/PhysRevA.72.064305
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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