Paint it Black – To Protect the Qubits

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dc.contributor.authorFredriksson, Mattias
dc.contributor.authorSvensson, Simon
dc.contributor.authorHolmgren, Henning
dc.contributor.departmentChalmers tekniska högskola / Institutionen för teknisk fysiksv
dc.contributor.departmentChalmers University of Technology / Department of Applied Physicsen
dc.date.accessioned2019-07-03T12:58:45Z
dc.date.available2019-07-03T12:58:45Z
dc.date.issued2012
dc.description.abstractThis 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.
dc.identifier.urihttps://hdl.handle.net/20.500.12380/162806
dc.language.isoeng
dc.setspec.uppsokPhysicsChemistryMaths
dc.subjectSupraledning
dc.subjectLågtemperaturfysik
dc.subjectMesoskopisk fysik
dc.subjectNanoteknik
dc.subjectNanovetenskap och nanoteknik
dc.subjectSuperconductivity
dc.subjectLow temperature physics
dc.subjectMesoscopic physics
dc.subjectNano Technology
dc.subjectNanoscience & Nanotechnology
dc.titlePaint it Black – To Protect the Qubits
dc.type.degreeExamensarbete på grundnivåsv
dc.type.uppsokM
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