E. Streed, V. Blūms, M. Piotrowski, M. I. Hussain, B. G. Norton, S. Connell, S. Gensemer, M. Lobino
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Single atom sub atto-newton force sensor in three-dimensions
Ultra-sensitive force measurements are crucial for physics. Nanometer precision displacement measurements of a Paul trapped 174Yb+ ion provides force sensitivities below aN/√Hz. Accuracy was verified by measuring the 95 zN cooling laser light force pressure.