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Conference on Lasers and Electro-Optics

Direct observation of trapped ion micromotion and multi-qubits state with a TimePix3cam single-photon sensitive camera.

Liudmila A. Zhukas, Maverick J. Millican, P. Švihra, ANDREI NOMEROTSKI, B. B. Blinov

Published Jan 1, 2021• 0 citations
Publisher

Abstract

Here we demonstrate the use of Tpx3cam, a novel single-photon sensitive camera, in trapped ion experiments. We perform detection of multiple-qubit state as well as observation of micromotion in a linear ion chain.
DOI
10.1364/cleo_at.2021.jf2g.2

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In this paper, direct observation of micromotion for multiple ions in a laser-cooled trapped ion crystal is discussed along with a measurement technique for micromotion amplitude. Micromotion is directly observed using a time-resolving, single-photon-sensitive camera that provides both fluorescence and position data for each ion on the nanosecond time scale. Micromotion amplitude and phase for each ion in the crystal are measured, allowing this method to be sensitive to tilts and shifts of the ion chain from the null of the radio-frequency quadrupole potential in the linear trap. Spatial resolution makes this micromotion detection technique suitable for complex ion configurations, including two-dimensional geometries. It does not require any additional equipment or laser beams, and the modulation of the cooling lasers or trap voltages is not necessary for detection as it is in other methods.
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