Abstract

Quantum computers (QC) have the potential to efficiently solve problems currently unfeasible on even the fastest generation of classical computers. The building block of a QC is a quantum bit (qubit). Encoding and reading qubit states coupled via high-Q resonant cavity modes is a solution to maintaining qubit states; however there is a need for simple, scalable and robust fabrication techniques capable of realizing high density cavity arrays. RadiaBeam is developing a novel approach utilizing metal additive manufacturing(AM) using both laser and electron beam powder bed fusion. Using a 6GHz quarter wave resonator (QWR), we fabricated several niobium and titanium alloy QWR cavities and characterized their superconducting RF performance. In this letter, we provide the details of the first 3D-printed qubit cavities design and fabrication, and compare their Q-factors, measured at dilution fridge temperatures, against the machined Nb resonators.

Details

Title
First cryogenic test results of 3D-printed resonators for quantum bits
Author
Carriere, P R 1 ; Frigola, P 1 ; Agustsson, R 1 ; Chou, M H 2 ; Cleland, A N 3 ; Horn, T 4 ; Kelly, M 5 ; Kutsaev, S V 1 ; Povey, R 2 ; Smirnov, A Y 1 

 RadiaBeam Technologies LLC , Santa Monica, CA, 90404 , USA 
 Institute for Molecular Engineering, University of Chicago , Chicago, IL, 60637 , USA 
 Institute for Molecular Engineering, University of Chicago , Chicago, IL, 60637 , USA; Argonne National Laboratory , Lemont, IL, 60439 , USA 
 North Carolina State University , Raleigh, NC 27607 , USA 
 Argonne National Laboratory , Lemont, IL, 60439 , USA 
First page
012046
Publication year
2022
Publication date
May 2022
Publisher
IOP Publishing
ISSN
17578981
e-ISSN
1757899X
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2682432603
Copyright
Published under licence by IOP Publishing Ltd. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.