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|Type:||Artigo de periódico|
|Title:||Effective cross-Kerr nonlinearity and robust phase gates with trapped ions|
|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.|
|Editor:||American Physical Soc|
|Citation:||Physical Review A. American Physical Soc, v. 72, n. 6, 2005.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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