Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session V66: Exhibitor Workshop: QDevil – Minimizing electron temperature with the QFilter: A Coulomb blockade thermometry studyExhibitor Workshop Live
|
Hide Abstracts |
Sponsoring Units: APS |
Thursday, March 18, 2021 2:00PM - 3:00PM Live |
V66.00001: Minimizing electron temperature with the QFilter: A Coulomb blockade thermometry study Joost van der Heijden, Søren Andresen, Ph.D. The performance and accuracy of quantum electronics is substantially degraded when the temperature of the electrons is too high. The electron temperature can be reduced with appropriate thermal anchoring and the use of a good filter for both DC and RF lines. Ultimately, for high performance filters, the electron temperature can approach the phonon temperature (indicated by resistive thermometers) in a dilution refrigerator to within 10 mK. In this workshop we will discuss a method for measuring the electron temperature using Coulomb blockade thermometry and apply this technique to find the readily achievable electron temperature when using the QFilter, provided by QDevil. We present all the details of the experiment, including building up the experimental setup, connecting and tuning the required equipment, coding the measurements, and analyzing the data. Further, we will show that using other QDevil products, a 24 channel ultra-low noise D/A converter (QDAC), a breakout box (QBox) and a sample holder board (QBoard) will greatly benefit these experiments. In our Coulomb blockade thermometry experiments on a single GaAs/AlGaAs quantum dot we measured an electron temperature of 28 mK. |
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700