Sökning: "matter"

Visar resultat 21 - 25 av 3585 avhandlingar innehållade ordet matter.

  1. 21. Topological states of matter in low dimensions

    Författare :Christian Spånslätt; Eddy Ardonne; Thors Hans Hansson; Karsten Flensberg; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; teoretisk fysik; Theoretical Physics;

    Sammanfattning : A central theme in condensed matter physics is the classification and characterization of states of matter. In the recent decades, it has become evident that there exists a large class of quantum mechanical systems that must be classified according to properties deeply rooted in the mathematical field of topology, rather than in terms of which symmetries they break. LÄS MER

  3. 22. Triptych of quantum matter in one dimension : Playful constructions in theoretical and computational physics

    Författare :Axel Gagge; Jonas Larson; Andrew Daley; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Bloch oscillations; Peierls; adiabatic; diabatic; ultracold atoms; Bose-Fermi mixtures; phonon; cQED; superradiance; polarons; DMRG; MPS; Kosterlitz-Thouless; Wannier; Bloch; quantum phase transitions; Theoretical Physics; teoretisk fysik;

    Sammanfattning : In this compilation thesis, three different quantum mechanical systems are presented. All three have in common that they are one-dimensional quantum systems which, each in their own way, can be seen as analogous to other quantum systems. LÄS MER

  4. 23. Making Accounting Matter : A Study of the Constitutive Practices of Accounting Framers

    Författare :Charlotta Bay; Bino Catasús; Gustav Johed; Yves Gendron; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; constitutive role; interpretation; accounting framer; private sphere; identification design practices; representation; social construction; Business Studies; Företagsekonomi;

    Sammanfattning : The idea of accounting as a constitutive means, making people think and act in particular ways, is well established in the social strand of accounting literature. In professional organisations, for example, accounting is claimed to be critical to processes of turning people into rational and responsible economic actors. LÄS MER

  5. 24. Dissolved organic matter in lakes : Chemical diversity and continuum of reactivity

    Författare :Alina Mostovaya; Lars Tranvik; Colin Stedmon; Uppsala universitet; []
    Nyckelord :dissolved organic matter; DOM; dissolved organic carbon; DOC; PARAFAC; reactivity continuum model; ultrahigh resolution mass spectrometry; FT-ICR-MS; organic matter characterization; decomposition kinetics; baseline metabolism; Biologi med inriktning mot limnologi; Biology with specialization in Limnology;

    Sammanfattning : Dissolved organic matter (DOM) is the largest pool of organic carbon in aquatic systems and an important component of the global carbon cycle. Large amounts of DOM are decomposed within lakes, resulting in fluxes of CO2 and CH4 to the atmosphere. LÄS MER

  7. 25. Miniaturized cell and flow reactor for QCM-D measurements on fluids and soft matter

    Författare :Gabriel Ohlsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; soft matter materials; confined volume; Nanocell; QCM-D sensing; miniaturized flow reactor; lipid bilayer; thin films; liquid crystals;

    Sammanfattning : Thin soft matter films are frequently used in many technical applications, where phenomena taking place in the interfacial regions, control film properties and functionality. In order to optimize the latter there is a clear need of methods and tools for probing diverse physical properties of thin soft matter films confined in a nano-sized region. LÄS MER