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Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

Published on: October 9, 2012

A compact and versatile cryogenic probe station for quantum device testing.

Mathieu de Kruijf¹, Simon Geyer¹, Toni Berger¹

¹Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland.

The Review of Scientific Instruments

|May 19, 2023

Summary

This summary is machine-generated.

A new cryogenic probe station enables rapid electrical characterization of quantum computing devices from room temperature to below 2 K. This accelerates the design-fabrication-measurement cycle for scalable quantum circuits.

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Area of Science:

Quantum Computing
Materials Science
Electrical Engineering

Background:

Scalable quantum computing requires rapid feedback from cryogenic electrical characterization.
Current high-throughput testing at room temperature uses probe-based solutions.
Cryogenic testing is essential for characterizing quantum devices like spin qubits.

Purpose of the Study:

To present a versatile probe station for cryogenic electrical characterization.
To demonstrate its compatibility with magnetic field measurement setups.
To accelerate the development of scalable quantum computing technologies.

Main Methods:

Developed a compact probe station operable from room temperature down to below 2 K.
Integrated the probe station into standard cryogenic measurement setups with a magnet.
Characterized silicon fin field-effect transistors for quantum dot spin qubit applications.

Main Results:

The probe station demonstrated successful operation across a wide temperature range (room temp. to < 2 K).
Its small size allows integration into existing cryogenic measurement systems.
Successfully characterized silicon fin field-effect transistors, showing potential for quantum dot hosting.

Conclusions:

The developed cryogenic probe station significantly accelerates the design-fabrication-measurement cycle for quantum devices.
It provides crucial feedback for process optimization in scalable quantum circuit development.
This tool is vital for advancing quantum computing technology.