Search for dissertations about: "quantum noise"

Showing result 1 - 5 of 70 swedish dissertations containing the words quantum noise.

  1. 1. Superconducting qubits - measurement, entanglement, and noise

    Author : Lars Tornberg; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Quantum Electric Circuits; Open Quantum Systems; Quantum Optics; Quantum Computing; Superconducting Qubits; Quantum Measurement;

    Abstract : In the early 1980’s, it was suggested that a computer obeying the laws of quantum mechanics would be able to solve problems beyond the capabilities of a classical computer. The novel ways in which such a quantum computer works relies on the quantum properties of the quantum bits (qubits) used to store the information. READ MORE

  2. 2. Quantum Holonomy for Many-Body Systems and Quantum Computation

    University dissertation from Växjö : Linnaeus University Press

    Author : Vahid Azimi Mousolou; Linnéuniversitetet.; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Quantum holonomy; geometric phase; quantum correlations; quantum phase transitions; quantum computation; Natural Science; Naturvetenskap; Physics; Fysik;

    Abstract : The research of this Ph. D. thesis is in the field of Quantum Computation and QuantumInformation. A key problem in this field is the fragile nature of quantum states. READ MORE

  3. 3. Dynamics of Quantum Correlations with Photons Experiments on bound entanglement and contextuality for application in quantum information

    University dissertation from Stockholm : Department of Physics, Stockholm University

    Author : Elias Amselem; Stockholms universitet.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Quantum information; quantum optics; foundations of quantum mechanics; entanglement; non-contextuality; Kochen-Specker theorem; parametric down-conversion; quantum state engineering; Physics; fysik;

    Abstract : The rapidly developing interdisciplinary field of quantum information, which merges quantum and information science, studies non-classical aspects of quantum systems. These studies are motivated by the promise that the non-classicality can be used to solve tasks more efficiently than classical methods would allow. READ MORE

  4. 4. Measuring quantum systems with a tunnel junction

    University dissertation from Umeå : Fysik

    Author : Joachim Wabnig; Umeå universitet.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; quantum mechanics; quantum measurement; tunnel junction; qubit; nanomechanics; noise; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik;

    Abstract : This thesis is concerned with employing the statistics of charge transfer in a conductor as a tool for quantum measurement. The physical systems studied are electronic devices made by nanoscale manufacturing techniques. In this context quantum measurement appears not as a postulate, but as physical process. READ MORE

  5. 5. Quantum optics with artificial atoms

    University dissertation from Umeå : Fysik

    Author : Anton Frisk Kockum; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; surface acoustic waves; transmon; circuit QED; photon detector; parity measurement; quantum stochastic calculus; Quantum optics; artificial atoms; quantum measurement;

    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