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Trapped Ion Quantum Computing
Nonlinear coupling of continuous variables at the single quantum level
arXiv
Authors: C. F. Roos, T. Monz, K. Kim, M. Riebe, H. Haeffner, D. F. V. James, R. Blatt
Year
2007
Paper ID
50398
Status
Preprint
Abstract Read
~2 min
Abstract Words
88
Citations
N/A
Abstract
We experimentally investigate nonlinear couplings between vibrational modes of strings of cold ions stored in linear ion traps. The nonlinearity is caused by the ions' Coulomb interaction and gives rise to a Kerr-type interaction Hamiltonian H = n_r*n_s, where n_r,n_s are phonon number operators of two interacting vibrational modes. We precisely measure the resulting oscillation frequency shift and observe a collapse and revival of the contrast in a Ramsey experiment. Implications for ion trap experiments aiming at high-fidelity quantum gate operations are discussed.
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- This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
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- We experimentally investigate nonlinear couplings between vibrational modes of strings of cold ions stored in linear ion traps.
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