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R. G. Herb Condensed Matter Seminars

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Events During the Week of January 21st through January 28th, 2018

Monday, January 22nd, 2018

No events scheduled

Tuesday, January 23rd, 2018

No events scheduled

Wednesday, January 24th, 2018

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Thursday, January 25th, 2018

Connecting the dots: the interactions and environment of electrons in zero dimensions
Time: 10:00 am
Place: 5310 Chamberlin
Speaker: Xanthe Croot, University of Sydney
Abstract: Quantum information can be encoded in the spin and charge states of electrons in semiconductor quantum dots. While qubits in these zero-dimensional systems have exhibited long coherence times and excellent one and two-qubit operability, there remain challenges - namely, unwanted environmental coupling and issues of scalability. In this talk, I will discuss interactions between microwave-driven electrons in GaAs quantum dots and their phonon environment, which can lead to qubit population inversions and decoherence. Techniques for probing the charge environment of the qubit will also be explored, and I will briefly touch on scalable readout protocols. Finally, I will outline progress in an architecture designed to facilitate controllable coupling between separated qubits, an important outstanding challenge for the field.
Host: Eriksson
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Friday, January 26th, 2018

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