Electromagnetic Modelling of a Surface-Electrode Ion Trap for High Fidelity Microwave Quantum Simulations

authored by: Axel Hoffmann, Paul Florian Ungerechts, Rodrigo André Munoz Carpio, Brigitte Ilse Elisabeth Kaune, Teresa Meiners, Dirk Manteuffel, Christian Ospelkaus
Abstract: Surface-electrode ion traps with integrated microwave conductors for near-field quantum control are a promissing approach for scaleable quantum computers. The goal of the QVLS-Q1 Project is to realize the first scalable 50-qubit quantum computer based on surface-electrode ion traps. Designing a multi-layer ion trap with surface-electrodes for electromagntic near-field operations comes with high demands on the design of the electrical components, such as impedance matching of the surface electrodes to the microwave and radio frequency sources. The near field had to be designed considering the necessary conditions to trap 9Be+- Ions in a multi layer trap. This process will be presented in this talk, emphasising on the constraints of the electrically small chip size compared to the length of the applied electromagnetic waves. In electromagnetic full-wave simulations we can show that a properly desinged electrode combined with an efficient impedance matching accounts for a significant decrease of electrical losses. The design of the meander-like microwave guide will be discussed including the simulation methods and approaches.
Organisation(s): Institute of Microwave and Wireless Systems
Institute of Quantum Optics
Faculty of Mathematics and Physics
Type: Abstract
Publication date: 14.03.2022
Publication status: Published
Electronic version(s): https://www.dpg-verhandlungen.de/year/2022/conference/erlangen/part/q/session/4/contribution/1 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@conference{99f73a8e8de5407bab262684bf944a9c,
title = "Electromagnetic Modelling of a Surface-Electrode Ion Trap for High Fidelity Microwave Quantum Simulations",
abstract = "Surface-electrode ion traps with integrated microwave conductors for near-field quantum control are a promissing approach for scaleable quantum computers. The goal of the QVLS-Q1 Project is to realize the first scalable 50-qubit quantum computer based on surface-electrode ion traps. Designing a multi-layer ion trap with surface-electrodes for electromagntic near-field operations comes with high demands on the design of the electrical components, such as impedance matching of the surface electrodes to the microwave and radio frequency sources. The near field had to be designed considering the necessary conditions to trap 9Be+- Ions in a multi layer trap. This process will be presented in this talk, emphasising on the constraints of the electrically small chip size compared to the length of the applied electromagnetic waves. In electromagnetic full-wave simulations we can show that a properly desinged electrode combined with an efficient impedance matching accounts for a significant decrease of electrical losses. The design of the meander-like microwave guide will be discussed including the simulation methods and approaches. ",
author = "Axel Hoffmann and Ungerechts, {Paul Florian} and {Munoz Carpio}, {Rodrigo Andr{\'e}} and Kaune, {Brigitte Ilse Elisabeth} and Teresa Meiners and Dirk Manteuffel and Christian Ospelkaus",
year = "2022",
month = mar,
day = "14",
language = "English",
note = "DPG-Fr{\"u}hjahrstagungen ; Conference date: 14-03-2022 Through 18-03-2022",
}