Search for dissertations about: "Non-Abelian geometric phase"

Found 3 swedish dissertations containing the words Non-Abelian geometric phase.

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

   Author : Vahid Azimi Mousolou; Erik Sjöqvist; Rosario Fazio; Linnéuniversitetet; []
   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 Quantum Information. A key problem in this field is the fragile nature of quantum states. READ MORE

4. 2. Quantum Holonomies : Concepts and Applications to Quantum Computing and Interferometry

   Author : David Kult; Erik Sjöqvist; Gunnar Björk; Barry Sanders; Uppsala universitet; []
   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

5. 3. Entanglement and Quantum Computation from a Geometric and Topological Perspective

   Author : Markus Johansson; Marie Ericsson; Jens Eisert; Uppsala universitet; []
   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