用于轴子探测的transmon量子比特芯片设计与仿真
量子物理
2024-01-29 v2
摘要
量子传感是一个迅速扩展的研究领域，其在基础物理中的应用之一便是搜寻暗物质。基于超导量子比特的器件已通过量子非破坏测量（QND）成功应用于探测数GHz的单光子。该技术使我们能够进行可重复测量，在为轴子和暗光子搜寻等基于高精度微波光子探测的实验中带来显著的灵敏度提升与暗计数率抑制。在此背景下，INFN Qub-IT项目的目标是实现一种基于超导量子比特的巡回单光子计数器，利用QND来增强轴子搜寻实验。在本研究中，我们展示了Qub-IT在实现其首个超导量子比特器件方面的进展，阐述了设计与仿真流程，以及用于读取的已制备共面波导谐振器（CPW）的表征。我们匹配了目标量子比特参数，并评估了集总元件与分布元件仿真模型之间百分之几水平的一致性。对于-92 dBm的片上读取功率，我们达到了9.2x10^5的最大内部品质因数。
引用
@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}
}