Shot noise thermometry down to 10mK

The authors report measurements of the shot noise thermometer (SNT), a primary thermometer based on the electronic noise from a tunnel junction, in the range from 10to200mK. They demonstrate operation of the SNT down to 10mK with 10% accuracy at the lowest measured temperature. At 10mK, where for a...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Applied physics letters 2006-10, Vol.89 (18)
Hauptverfasser: Spietz, Lafe, Schoelkopf, R. J., Pari, Patrick
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The authors report measurements of the shot noise thermometer (SNT), a primary thermometer based on the electronic noise from a tunnel junction, in the range from 10to200mK. They demonstrate operation of the SNT down to 10mK with 10% accuracy at the lowest measured temperature. At 10mK, where for a measurement frequency of f=450MHz, hf=2.5kBT, the authors demonstrate that provided that quantum corrections are taken into account, the SNT continues to be a practical thermometer. They also show that self-heating is not a measurable problem and demonstrate a simplified readout of the SNT.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2382736