Measurement-Induced Heating of Trapped Ions

• URL: http://arxiv.org/abs/2404.09327v2
• Date: Tue, 15 Oct 2024 17:50:42 GMT
• Title: Measurement-Induced Heating of Trapped Ions
• Authors: A. J. Rasmusson, Ilyoung Jung, Frank G. Schroer, Antonis Kyprianidis, Philip Richerme,
• Abstract summary: We experimentally study the heating of trapped atomic ions during measurement of their internal qubit states. We observe that ions in the fluorescing state rapidly scatter photons and heat at a rate of mbox$dotbarngtrsim 2times 104$ quanta/s.
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• Abstract: We experimentally study the heating of trapped atomic ions during measurement of their internal qubit states. During measurement, ions are projected into one of two basis states and discriminated by their state-dependent fluorescence. We observe that ions in the fluorescing state rapidly scatter photons and heat at a rate of \mbox{$\dot{\bar{n}}\gtrsim 2\times 10^4$ quanta/s}, which is orders of magnitude faster than typical anomalous ion heating rates. We introduce a quantum trajectory-based framework that accurately reproduces the experimental results and provides a unified description of ion heating for both continuous and discrete sources.

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