Surface-electrode trap with an integrated permanent magnet for generating a magnetic-field gradient at trapped ions
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Shimizu, Kenji
Noguchi, Atsushi
Urabe, Shinji
Tanaka, Utako
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Abstract
We report on a surface-electrode trap with SmCo magnets arranged in a quadrupole configuration underneath the trap electrode. Because the distance between the magnets and the trapped ions can be as little as several hundred micrometers, a large magnetic field is produced without any heat management. The magnetic-field gradient was measured using the Zeeman splitting of a single trapped 40Ca+ ion at several positions, and a field gradient of 36 T m−1 was obtained. Such a field gradient is useful for the generation of a state-dependent force, which is important for quantum simulation and/or quantum gate operation using radio-frequency or microwave radiation.
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Journal of Physics B: Atomic, Molecular and Optical Physics
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50
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2
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© 2017 Institute of Physics Publishing. This is the author-manuscript version of this paper. Reproduced 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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Atomic, molecular and optical physics
Theoretical and computational chemistry
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Kawai, Y; Shimizu, K; Noguchi, A; Urabe, S; Tanaka, U, Surface-electrode trap with an integrated permanent magnet for generating a magnetic-field gradient at trapped ions, Journal of Physics B: Atomic, Molecular and Optical Physics, 2017, 50 (2), pp. 025501: 1-025501: 7