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quant-ph2007★ 55 cited
Precision spectroscopy with two correlated atoms
M. Chwalla, K. Kim, T. Monz +4
We discuss techniques that allow for long coherence times in laser spectroscopy experiments with two trapped ions. We show that for this purpose not only entangled ions prepared in…
quant-ph2007★ 74 cited
Nonlinear coupling of continuous variables at the single quantum level
C. F. Roos, T. Monz, K. Kim +4
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 inte…