A scalable helium gas cooling system for trapped-ion applications
Abstract
Microfabricated ion-trap devices offer a promising pathway towards scalable quantum computing. Research efforts have begun to focus on the engineering challenges associated with developing large-scale ion-trap arrays and networks. However, increasing the size of the array and integrating on-chip electronics can drastically increase the power dissipation within the ion-trap chips. This leads to an increase in the operating temperature of the ion-trap and limits the device performance. Therefore, effective thermal management is an essential consideration for any large-scale architecture. Presented here is the development of a modular cooling system designed for use with multiple ion-trapping experiments simultaneously. The system includes an extensible cryostat that permits scaling of the cooling power to meet the demands of a large network. Following experimental testing on two independent ion-trap experiments, the cooling system is expected to deliver a net cooling power of 111 W at ~70 K to up to four experiments. The cooling system is a step towards meeting the practical challenges of operating large-scale quantum computers with many qubits.
Cite
@article{arxiv.2106.07580,
title = {A scalable helium gas cooling system for trapped-ion applications},
author = {Foni R. Lebrun-Gallagher and Nicholas Johnson and Mariam Akhtar and Sebastian Weidt and David Bretaud and Samuel J. Hile and Alexander Owens and Winfried K. Hensinger},
journal= {arXiv preprint arXiv:2106.07580},
year = {2021}
}