Towards measuring decoherence times of Undoped GaAs/AlGaAs spin qubit (SP Workshop)

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• Miss Egle Tylaite, University of Cambridge, Semiconductor Physics Group
• Wednesday 18 November 2015, 14:15-15:15
• Mott Seminar Room (Mott Building Room 531), Cavendish Laboratory.

If you have a question about this talk, please contact Teri Bartlett.

In this workshop I will discuss the prospects of induced double quantum dots to improve the relaxation and coherence time of electron spin qubit compared to the current record in doped GaAs heterostructures. The absence of intentional dopants is expected not only to decrease the number of small angle scattering events, (which is observed as an increase in mobility and the fact that lower carrier densities may be achieved), but it also is expected to reduce RTS (Random Telegraph Signals) noise which would be beneficial for more accurate current measurements. I will present the progress towards making an undoped quantum dots, getting to the last electron, as well as the challenges of using fast measurement techniques – radio frequency reflectometry.

This talk is part of the Semiconductor Physics Group Seminars series.

This talk is included in these lists:

• All Cavendish Laboratory Seminars
• All Talks (aka the CURE list)
• Centre for Health Leadership and Enterprise
• Featured lists
• ME Seminar
• Mott Seminar Room (Mott Building Room 531), Cavendish Laboratory
• Neurons, Fake News, DNA and your iPhone: The Mathematics of Information
• School of Physical Sciences
• Semiconductor Physics Group Seminars
• Thin Film Magnetic Talks

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