Nongalvanic thermometry for ultracold two-dimensional electron domains

Abstract

Measuring the temperature of a two-dimensional electron gas at temperatures of a few mK is a challenging issue, which standard thermometry schemes may fail to tackle. We propose and analyze a nongalvanic thermometer, based on a quantum point contact and quantum dot, which delivers virtually no power to the electron system to be measured.

5 pages, 3 figures

References in corpus (7)

• Non-Abelian Anyons and Topological Quantum Computation
• Single-shot read-out of an individual electron spin in a quantum dot
• Observation of the two-channel Kondo effect
• Micrometre-scale refrigerators
• Frequency-selective single photon detection using a double quantum dot
• Using a quantum dot as a high-frequency shot noise detector
• Detecting THz current fluctuations in a quantum point contact using a nanowire quantum dot