Search for dissertations about: "single Cooper Pair box"
Showing result 1 - 5 of 10 swedish dissertations containing the words single Cooper Pair box.
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1. Quantum Coherence in the Single Cooper Pair Box
Abstract : This thesis presents measurements of quantum coherence in a single Cooper pair box, where quantum oscillations of charge between a reservoir and a small superconducting island have been observed. The single Cooper pair box (SCB) consists of a small metallic island which is connected to a reservoir via a tunnel junction. READ MORE
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2. The Single Cooper Pair Box - a Quantum-Mechanical Electronic Circuit
Abstract : In this thesis the single Cooper pair box (SCB) is investigated with a radio frequency single electron transistor (RF-SET). The RF-SET is used as an electrometer to detect the charge of the SCB. The SCB can be regarded as a quantum two-level system and could therefore be a possible qubit. READ MORE
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3. Fast dynamics and measurements of single-charge devices
Abstract : In this thesis we present measurements on several different devices, including the single-Cooper-pair box (SCB), the single-electron box, tunable superconducting resonators and so called transmon qubits.By exploiting the quantum capacitance of the SCB, its state was measured by embedding the box in a radio-frequency resonator. READ MORE
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4. Backaction of a single electron transistor
Abstract : .... READ MORE
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5. Controllable coupling of superconducting qubits and implementation of quantum gate protocols
Abstract : The concept of a quantum computer was invented in the beginning of the 1980s as a quantum generalization of the reversible classical computer. After discoveries in the middle of the 1990s of quantum algorithms, which wouldsolve some problems considered intractable for classical computers, the field of quantum computing has developed rapidly. READ MORE