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Pulsed low-noise amplifiers for quantum information systems

Reference number
Coordinator Chalmers Tekniska Högskola AB - Chalmers Tekniska Högskola Inst f Mikroteknologi & nanovetensk
Funding from Vinnova SEK 2 820 000
Project duration July 2022 - December 2024
Status Ongoing
Venture The strategic innovation programme Electronic Components and Systems:
Call Electronic components & systems - research and innovation projects 2022

Purpose and goal

The objective is to demonstrate that a pulsed microwave low-noise amplifier (LNA) can operate with marginal penalty in gain and noise as compared to a static LNA used in present quantum information systems. The goal is to show that a pulsed LNA can operate under 10-microwatt power dissipation.

Expected effects and result

In this project, the parties will develop a unique concept based on pulsed amplifier technology in the readout of microwave qubits. By feedback of the electronics circuit, gain can be stabilized and power consumption minimized, i.e. the amplifier is smart. If the project is successful, we have a technology to reduce power consumption by 100 times compared to today´s industrial solution. This would strengthen the participating Swedish SME´s position in an internationally growing market for quantum computers.

Planned approach and implementation

WP1: Measurements on pulsed transistors WP2: Measurements of pulsed LNAs WP3: Design of smart bias supply WP4: Fabrication and integration of bias supply in pulsed LNA WP5: Pulsed LNA testing in industrial cryogenic test bench

The project description has been provided by the project members themselves and the text has not been looked at by our editors.

Last updated 29 September 2023

Reference number 2022-00830