Search for dissertations about: "Quantum holonomy"

Found 5 swedish dissertations containing the words Quantum holonomy.

  1. 1. Quantum Holonomies Concepts and Applications to Quantum Computing and Interferometry

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : David Kult; Erik Sjöqvist; Gunnar Björk; Barry Sanders; [2007]
    Keywords : Physics; Quantum Holonomy; Geometric Phase; Quantum Computation; Completely Positive Map; Mixed State; Interferometry; Fysik;

    Abstract : Quantum holonomies are investigated in different contexts.A geometric phase is proposed for decomposition dependent evolution, where each component of a given decomposition of a mixed state evolves independently. It is shown that this geometric phase only depends on the path traversed in the space of decompositions. READ MORE

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

    University dissertation from Växjö : Linnaeus University Press

    Author : Vahid Azimi Mousolou; Erik Sjöqvist; Rosario Fazio; [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. Entanglement and Quantum Computation from a Geometric and Topological Perspective

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Markus Johansson; Marie Ericsson; Jens Eisert; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Quantum Information; Geometric Phases; Topological Phases; Entanglement; Quantum Computation;

    Abstract : In this thesis we investigate geometric and topological structures in the context of entanglement and quantum computation.A parallel transport condition is introduced in the context of Franson interferometry based on the maximization of two-particle coincidence intensity. READ MORE

  4. 4. Classical Aspects on the Road to Quantum Gravity: A Study in the Framework of the New Variables

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Ola Boström; [1994]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : There has been a lot of progress in the quest for the structure of spacetime since a canonical non-perturbative quantization program for general relativity was set up ten years ago. The crucial ideas are two choices of coordinates on phase space. READ MORE

  5. 5. Aspects of Wrapped Branes in String and M-Theory

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Ling Bao; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Instantons; Algebraic symmetries; String theory;

    Abstract : This thesis consists of an introductory text together with five appended research papers. The Ariadne's thread through the whole thesis is various effects coming from high-dimensional p-branes in various subsectors of string and M-theory. READ MORE