Search for dissertations about: "quantum measurement"
Showing result 21 - 25 of 112 swedish dissertations containing the words quantum measurement.
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21. Entanglement in quantum communication : preparation and characterization of photonic qubits
Abstract : At the heart of quantum physics lies the principle of superposition, and at the heart of information theory lies the bit. Perhaps the most useful property of quantum systems is that they can be loaded with information bits, so-called qubits, that are indefinitely both 0 and 1 until a measurement is made. READ MORE
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22. Engineering superconducting qubits : towards a quantum machine
Abstract : A quantum computer is an information processing machine, much like an ordinary classical computer, but its function is based on quantum mechanical principles. To be able to construct such a machine would be a fantastic accomplishment---to have total control over a quantum system is a dream for both physicists and science-fiction enthusiasts. READ MORE
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23. Configurations in Quantum Information
Abstract : Measurements play a central role in quantum information. This thesis looksat two types: contextual measurements and symmetric measurements. Contextualityoriginates from the Kochen-Specker theorem about hidden variablemodels and has recently undergone a subtle shift in its manifestation. READ MORE
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24. Information Thermodynamics and Fluctuations in Quantum Dots
Abstract : In small systems with large fluctuations, the classical description of thermodynamics is no longer sufficient which has led to the development of stochastic thermodynamics. One important result from stochastic thermodynamics is that with measurement and feedback it is possible to use those fluctuations to extract work from a single heat bath coupled to the system. READ MORE
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25. Probing quantum criticality in heavy fermion CeCoIn5
Abstract : Understanding the low-temperature properties of strongly correlated materials requires accurate measurement of the physical properties of these systems. Specific heat and nuclear spin-lattice relaxation are two such properties that allow the investigation of the electronic behavior of the system. READ MORE