Search for dissertations about: "Quantum circuit"
Showing result 1 - 5 of 67 swedish dissertations containing the words Quantum circuit.
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1. Quantum optics with artificial atoms
Abstract : Quantum optics is the study of interaction between atoms and photons. In the eight papers of this thesis, we study a number of systems where artificial atoms (here, superconducting circuits emulating the level structure of an atom) enable us to either improve on known concepts or experiments from quantum optics with natural atoms, or to explore entirely new regimes which have not been possible to reach in such experiments. READ MORE
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2. 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
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3. Realistic prospect for continuous variable quantum computing in circuit-QED
Abstract : This licentiate thesis is an extended introduction to the appended papers, which pertain to finding quantum states that are useful for continuous variable quantum computing. The useful states are characterized by a negative Wigner function. READ MORE
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4. Quantum Optics and Waveguide Quantum Electrodynamics in Superconducting Circuits
Abstract : Waveguide circuit quantum electrodynamics (waveguide circuit QED) studies light-matter interaction with superconducting circuits in one dimension. In circuit QED, natural atoms are replaced by superconducting qubits consisting of a non-linear Josephson junction, resulting in an anharmonic energy spectrum just like real atoms. READ MORE
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5. Strong Interaction Between a Single Artificial Atom and Propagating Microwave Photons
Abstract : The realization of a quantum network composed of quantum nodes which process quantum fields and quantum channels to transfer quantum information has recently been proposed. In recent years, fundamental experiments produced by superconducting circuits suggest that they are promising candidates for realization of a quantum network. READ MORE