Väitös teknillisen fysiikan alalta, M.Sc. Elina Potanina

Delivering electrons one by one

Väitöskirjan nimi on “Optimization of Quantum Pumps”

Electron pumping is a process of capturing and releasing electrons periodically. Fast and accurate on-demand single-electron delivery is crucial for nanoelectronics and quantum current standard realization. On May 20, 2019, the definition of ampere was officially changed. The new quantum ampere is defined using the elementary charge and the caesium frequency standard. Recent developments in quantum technology and nano-device fabrication have already enabled single-electron pumping with close-to-metrological accuracy. One more order of magnitude improvement in accuracy is needed.

Optimization of a quantum pump implies a recipe with a control protocol that allows for extremely accurate and fast capture and release of a quantum particle. In this dissertation, I propose the optimal operating conditions for an experimentally available tunable-barrier single-electron pump.

Vastaväittäjänä toimii Associate Professor Peter Samuelsson, Lunds universitet, Ruotsi.

Kustos on professori Christian Flindt, Aalto-yliopiston perustieteiden korkeakoulu, teknillisen fysiikan laitos.

Väittelijän yhteystiedot: Elina Potanina, Bluefors Oy, [email protected], 0449454097

Elektroninen väitöskirja

Väitöskirja on julkisesti nähtävillä 10 päivää ennen väitöstä Aalto-yliopiston perustieteiden korkeakoulun ilmoitustaululla Konemiehentie 2, Espoo

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