Decoherence of motional states of trapped ions

C. J. Myatt Time and Frequency Division, National Institute of Standards and Technology, Boulder, Colorado, 80303, USA

B. E. King Time and Frequency Division, National Institute of Standards and Technology, Boulder, Colorado, 80303, USA

Q. A. Turchette Time and Frequency Division, National Institute of Standards and Technology, Boulder, Colorado, 80303, USA

C. A. Sackett Time and Frequency Division, National Institute of Standards and Technology, Boulder, Colorado, 80303, USA

D. Kielpinski Time and Frequency Division, National Institute of Standards and Technology, Boulder, Colorado, 80303, USA

W. M. Itano Time and Frequency Division, National Institute of Standards and Technology, Boulder, Colorado, 80303, USA

C. Monroe Time and Frequency Division, National Institute of Standards and Technology, Boulder, Colorado, 80303, USA

D. J. Wineland Time and Frequency Division, National Institute of Standards and Technology, Boulder, Colorado, 80303, USA

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Abstract

We have studied the decoherence of motional-state superpositions of single trapped ions caused by their coupling to fluctuating fields. We illustrate these studies by showing how Schrödinger-cat state superpositions decohere in the presence of purposely-applied uniform stochastic electric fields and we compare these results to the decoherence caused by ambient fields in the experiments.

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Decoherence of motional states of trapped ions

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Decoherence of motional states of trapped ions

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