Optimization of spin readout fidelity by counting statistics in a phosphorus donor device

10 August, 2017 @ 4:00 pm

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We investigate spin and charge dynamics of a quantum dot of phosphorus atoms coupled to a radio-frequency single-electron transistor (rf-SET) using full counting statistics and inverse counting statistics.

We show how the magnetic field plays a role in determining the bunching or anti-bunching tunnelling statistics of the donor dot and SET system. Using the counting statistics we show how to determine the lowest magnetic field where spin-readout is possible. We then show how such a measurement can be used to investigate and optimise single electron spin-readout fidelity.

Details

Date:
10 August, 2017
Time:
4:00 pm

Venue

Newton Building, UNSW
CQC2T Conference Room, Level 2, Newton Building J12, UNSW Kensington Campus NSW Australia

Organizer

University of New South Wales