Millikelvin spatial thermometry of trapped ions

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Norton, BG
Streed, EW
Petrasiunas, MJ
Jechow, A
Kielpinski, D
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2011
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Abstract

We demonstrate millikelvin thermometry of laser-cooled trapped ions with high-resolution imaging. This equilibrium approach is independent of the cooling dynamics and has lower systematic error than Doppler thermometry, with ᵭK accuracy and ᱭK precision. We used it to observe the highly anisotropic dynamics of a single ion, finding temperatures of<60mK and>15K simultaneously along different directions. This thermometry technique can offer new insights into quantum systems sympathetically cooled by ions, including atoms, molecules, nanomechanical oscillators and electric circuits.

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New Journal of Physics

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13

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11

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© 2011 Institute of Physics Publishing. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.

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Page numbers are not for citation purposes. Instead, this article has the unique article number of 113022.

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Physical sciences

Atomic and molecular physics

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