Optimised surface-electrode ion-trap junctions for experiments with cold molecular ions

Abstract

We discuss the design and optimisation of two types of junctions between surface-electrode radiofrequency ion-trap arrays that enable the integration of experiments with sympathetically cooled molecular ions on a monolithic chip device. A detailed description of a multi-objective optimisation procedure applicable to an arbitrary planar junction is presented, and the results for a cross junction between four quadrupoles as well as a quadrupole-to-octupole junction are discussed. Based on these optimised functional elements, we propose a multi-functional ion-trap chip for experiments with translationally cold molecular ions at temperatures in the millikelvin range. This study opens the door to extending complex chip-based trapping techniques to Coulomb-crystallised molecular ions with potential applications in mass spectrometry, spectroscopy, controlled chemistry and quantum technology.

19 pages, 10 figures

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Cited by in corpus (9)

• Trapped-Ion Quantum Computing: Progress and Challenges
• Engineering of Microfabricated Ion Traps and Integration of Advanced On-Chip Features
• Optimization and implementation of a surface-electrode ion trap junction
• Electric Vector Potential Approach in Electrostatics: The Surface Electrode
• Fabrication of Surface Ion Traps with Integrated Current Carrying Wires enabling High Magnetic Field Gradients
• Cooperative engineering the multiple radio-frequency fields to reduce the X-junction barrier for ion trap chips
• Expansion Formula For the Magnetic Field of a Periodically Deformed Circular Current Loop
• Electrostatic Field of Angular-Dependent Surface Electrodes
• Realisation of homogeneous ion chain using surface traps