Design and simulation of a transmon qubit chip for Axion detection
Abstract
Quantum Sensing is a rapidly expanding research field that finds one of its applications in Fundamental Physics, as the search for Dark Matter. Devices based on superconducting qubits have already been successfully applied in detecting few-GHz single photons via Quantum Non-Demolition measurement (QND). This technique allows us to perform repeatable measurements, bringing remarkable sensitivity improvements and dark count rate suppression in experiments based on high-precision microwave photon detection, such as for Axions and Dark Photons search. In this context, the INFN Qub-IT project goal is to realize an itinerant single-photon counter based on superconducting qubits that will exploit QND for enhancing Axion search experiments. In this study, we present Qub-IT's status towards the realization of its first superconducting qubit device, illustrating design and simulation procedures and the characterization of fabricated Coplanar Waveguide Resonators (CPWs) for readout. We match target qubit parameters and assess a few-percent level agreement between lumped and distributed element simulation models. We reach a maximum internal quality factor of 9.2x10^5 for -92 dBm on-chip readout power.
Keywords
Cite
@article{arxiv.2310.05238,
title = {Design and simulation of a transmon qubit chip for Axion detection},
author = {Roberto Moretti and Hervè Atsè Corti and Danilo Labranca and Felix Ahrens and Guerino Avallone and Danilo Babusci and Leonardo Banchi and Carlo Barone and Matteo Mario Beretta and Matteo Borghesi and Bruno Buonomo and Enrico Calore and Giovanni Carapella and Fabio Chiarello and Alessandro Cian and Alessando Cidronali and Filippo Costa and Alessandro Cuccoli and Alessandro D'Elia and Daniele Di Gioacchino and Stefano Di Pascoli and Paolo Falferi and Marco Fanciulli and Marco Faverzani and Giulietto Felici and Elena Ferri and Giovanni Filatrella and Luca Gennaro Foggetta and Claudio Gatti and Andrea Giachero and Francesco Giazotto and Damiano Giubertoni and Veronica Granata and Claudio Guarcello and Gianluca Lamanna and Carlo Ligi and Giovanni Maccarrone and Massimo Macucci and Giuliano Manara and Federica Mantegazzini and Paolo Marconcini and Benno Margesin and Francesco Mattioli and Andrea Miola and Angelo Nucciotti and Luca Origo and Sergio Pagano and Federico Paolucci and Luca Piersanti and Alessio Rettaroli and Stefano Sanguinetti and Sebastiano Fabio Schifano and Paolo Spagnolo and Simone Tocci and Alessandra Toncelli and Guido Torrioli and Andrea Vinante},
journal= {arXiv preprint arXiv:2310.05238},
year = {2024}
}