Paint it Black – To Protect the Qubits

Examensarbete på grundnivå

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Typ: Examensarbete på grundnivå
Titel: Paint it Black – To Protect the Qubits
Författare: Fredriksson, Mattias
Svensson, Simon
Holmgren, Henning
Sammanfattning: This thesis deals with reducing quasiparticle generation in superconducting circuits caused by stray photons by utilizing electromagnetic absorbers. This thesis deals with reducing quasiparticle generation in superconducting circuits caused by stray photons by utilizing electromagnetic absorbers. Quasiparticle generation is a known problem in several superconducting circuit applications such as quantum computing research. In order to quantify successful radiation reduction, a superconducting resonator was used as a sensor and a cylindrical shield was designed for testing the absorbers. Four different absorbers were tested, three of them are commercially available microwave absorbers and one was designed by our group. Internal differences were observed between the absorbers, however, compared to reference measurements, no improvements were observed. The results also indicates that the resonators properties changed in-between measurements and more tests should be performed in order to draw final conclusions.
Nyckelord: Supraledning;Lågtemperaturfysik;Mesoskopisk fysik;Nanoteknik;Nanovetenskap och nanoteknik;Superconductivity;Low temperature physics;Mesoscopic physics;Nano Technology;Nanoscience & Nanotechnology
Utgivningsdatum: 2012
Utgivare: Chalmers tekniska högskola / Institutionen för teknisk fysik
Chalmers University of Technology / Department of Applied Physics
URI: https://hdl.handle.net/20.500.12380/162806
Samling:Examensarbeten på grundnivå // Basic Level Theses



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