On the use of RF probes to sense Quantum Dots

Speaker: 
Mr Prasanna Pakkiam
From: 
CQC2T, UNSW
When: 
4pm Thursday 17 November 2016
Where: 
CQC2T Conference Room Level 2, Newton Building, UNSW

As quantum dot devices grow in complexity, more groups are adopting the use of RF probes to measure the state of their qubits due to the sensor’s compact real-estate, high measurement bandwidth and general performance under low frequency noise. This seminar is to provide a general overview of the RF probe, specifically in the case of RF reflectometry, as applied to gate-defined and donor-based quantum dot systems. The state of the art, as seen in literature, shall be covered while noting some technical subtleties involved in optimising the sensor.