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1	Braided Actions of DHR Categories and Reconstruction of Chiral Conformal Field Theories Giorgetti, Luca 19 January 2016 (has links) No description available. 530 Physik (PPN621336750) Conformal field theory Modular tensor category DHR superselection sector
2	Local Extensions of Completely Rational Conformal Quantum Field Theories / Lokale Erweiterungen von Vollständig Rationellen Konformen Quantenfeldtheorien Kukhtina, Antonia Mitkova 17 June 2011 (has links) No description available. 530 Physik Physics konforme Quantenfeldtheorie lokale Erweiterung Superauswahlsektor Kommutator Deformation conformal quantum field theory local extension superselection sector commutator deformation 33.24
3	The Collapse of Decoherence : Can Decoherence Theory Solve The Problems of Measurement? Herlin, Karl January 2023 (has links) In this review study, we ask ourselves if decoherence theory can solve the problems of measurement in quantum mechanics. After an introduction to decoherence theory, we present the problem of preferred basis, the problem of non-observability of interference and the problem of definite outcomes. We present Zurek's theory of environment induced superselection rules and find that the problem of preferred basis and the problem of non-observability of interference can be solved through decoherence theory, but not the problem of outcomes, if we accept the eigenstate-eigenvalue link and the Born statistical interpretation. We reveal that these two concepts are essential in the Copenhagen interpretations of quantum mechanics, and give an account for von Neumann's and Wigner's conscious collapse interpretation as well as a detailed description of Bohr's and Heisenberg's interpretation. We discuss how Bohr's and Heisenberg's interpretation relates to decoherence with a special emphasis on the irreducibility of classical concepts as interpreted by Don Howard. During the discussion, we critique Wigner's use of the word "consciousness" as opposed to von Neumann's use, as well as Howard's decisively ontological approach to Bohr through an antithetical Kantian approach. We conclude by stating that decoherence theory cannot decisively solve the problem of definite outcomes of quantum mechanics, even when considering it in relation to the Copenhagen interpretation. quantum mechanics quantum physics philosophy of physics interpretation of quantum mechanics measurement problem problem of preferred basis problem of definite outcomes environment induced superselection rules copenhagen interpretation decoherence irreducibility of classical concepts Other Physics Topics Annan fysik
4	On Infravacua and the Superselection Structure of Theories with Massless Particles / Über Infravakua und die Superauswahlstruktur von Theorien mit masselosen Teilchen Kunhardt, Walter 27 June 2001 (has links) No description available. 530 Physik Superauswahlsektoren Ladung masselose Teilchen langreichweitige Wechselwirkung monoidale Kategorien Infravakuum Vakuum Kozykel Lokalisierung superselection sectors charge massless particles long-range interaction monoidal catergories infravacuum vacuum cocycles localisation 33.24 EBID 100: Monoidal categories symmetric monoidal categories EIBT

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