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Super conducting quantum bits - a comparison of different designs
KTH, School of Engineering Sciences (SCI).
2014 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This paper treats the current progress in the research of superconducting quantum bits. It includes background theory in the two distinct fields of superconductivity and quantum bits and how these two research fields relate. Different designs of superconducting quantum bits are presented including the derivation of their respective Hamiltonian. Particular focus is put on the Cooper Pair Box-design and the Transmon-design with their structure more explained in detail and energy levels numerically calculated. The paper concludes by comparing the various designs in terms of sensitivity to outer disturbances.

Abstract [sv]

Denna rapport behandlar forskningsframgångarna inom supraledande kvantbitar. Den innehåller bakgrundsteori i de två distinkta forskningsområdena supraledning och kvantbitar och hur de två relaterar till varandra. Olika varianter av supraledande kvantbitar presenteras inklusive härledningar av deras respektive Hamiltonianer. Särskild fokusläggs på Cooper Pair Box-designen och på Transmon-designen då deras strukturer förklaras mer i detalj och deras energinivåer beräknas numeriskt. Rapporten avslutas meden jämförelse mellan de olika varianternas känslighet mot yttre störningar.

Place, publisher, year, edition, pages
2014. , 26 p.
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-154220OAI: diva2:755939
Educational program
Master of Science in Engineering -Engineering Physics
Available from: 2014-10-15 Created: 2014-10-15 Last updated: 2014-10-15Bibliographically approved

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Joakim Persson Kandidatexam(1268 kB)106 downloads
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