Surface-electrode trap with an integrated permanent magnet for generating a magnetic-field gradient at trapped ions

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 ${}^{40}$Ca${}^{+}$ ion at several positions, and a field gradient of 36 T/m 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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Cited by in corpus (5)

• Engineering of Microfabricated Ion Traps and Integration of Advanced On-Chip Features
• Spin and motion dynamics with zigzag ion crystals in transverse magnetic field gradients
• Doppler Cooled Ions in a Compact, Reconfigurable Penning Trap
• Radio-frequency sideband cooling and sympathetic cooling of trapped ions in a static magnetic field gradient
• Hybrid setup for stable magnetic fields enabling robust quantum control