Search for dissertations about: "tunable resonator"
Showing result 1 - 5 of 17 swedish dissertations containing the words tunable resonator.
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1. Fast-tunable resonators and quantum electrical circuits
Abstract : In this thesis, measurements on superconducting electrical circuits that exhibit quantum mechanical effects are presented. Nonlinear superconducting circuits can be regarded as artificial atoms with energy spectra that can be engineered. The artificial atoms can be used as quantum bits for quantum computation. READ MORE
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2. Tunable superconducting resonators, subharmonic oscillations and manipulation of microwaves
Abstract : In this thesis I present different types of manipulations of microwave fields using tunable superconducting resonators. A resonator is made tunable by adding one or more superconducting quantum interference devices, SQUIDs. The SQUID consists of a superconducting loop with two Josephson junctions and acts as a tunable nonlinear inductor. READ MORE
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3. Tunable superconducting transmissionline resonator for qubit coupling
Abstract : In this licentiate thesis design, fabrication, and measurements of tunable superconducting microwave transmission line resonators are described. The resonators are of quarter wavelength type were the tuning is achieved by changing one of the boundary conditions of the resonator through a tunable impedance. READ MORE
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4. Tunable Filters based on Ferroelectrics and Semiconductor Varactors
Abstract : Experimental investigation and development of tunable microwave filters, based on single crystals of SrTiO3 (STO) and KTaO3 (KTO), form the main work of this thesis. The dielectric properties of STO and KTO crystals are evaluated experimentally for a wide temperature range, with a DC bias, using parallel-plate resonators with High Temperature Superconductor (HTS) and normal metal (Cu) electrodes. READ MORE
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5. Tunable resonators and filters based on bulk single crystal incipient ferroelectrics
Abstract : .... READ MORE