Sökning: "conformal symmetry"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden conformal symmetry.

  1. 1. Aspects of conformal strings

    Författare :Panagiotis Saltsidis; Stephen Hwang; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Physics; fysik;

    Sammanfattning : String theory is the quantum theory in which the fundamental constituents are one-dimensional extended objects in contrast to the usual quantum theories in which the fundamental constituents are point particles. At present we know of only one way to spread out the gravitational interaction and cut off its divergencies without spoiling the consistency of the theory; string theory. LÄS MER

  3. 2. Dualities, Symmetries and Unbroken Phases in String Theory : Probing the Composite Nature of the String

    Författare :Johan Engquist; Joseph Minahan; Charlotte Kristjansen; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Theoretical Physics; String Theory; M-Theory; Higher Spin Gauge Theory; Super Yang-Mills Theory; Anti-de Sitter Spacetime; Singletons; Massless Higher Spin Gauge Fields; AdS CFT Correspondence; Spin Chains; Semiclassical Strings; Tensionless Limits; Conformal Symmetry; Supersymmetry; Higher Spin Gauge Symmetry; Integrability; Fysik; Physics; Fysik;

    Sammanfattning : The thesis treats aspects of string/M-theory in anti-de Sitter spacetimes and their supersymmetric completions. By applying the AdS/CFT correspondence, as well as models of spin chains and singletons, we try to attain a better understanding of the underlying symmetries and the unbroken phases of string/M-theory. LÄS MER

  4. 3. Defects, renormalization and conformal field theory

    Författare :Alexander Söderberg Rousu; Agnese Bissi; Pedro Liendo; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; defects; boundaries; replica twist defect; conformal field theory; quantum field theory; Coleman-Weinberg mechanism; renormalization group flows; Theoretical Physics; Teoretisk fysik;

    Sammanfattning : Defects in quantum field theories appear in many different contexts and are of great physical interest. Among other things, defects are used to describe the Kondō effect in condensed matter, confinement in quantum chromodynamics, Rényi entropy in quantum information and cosmic strings in string theory. LÄS MER

  5. 4. Non-conformal gauge/string duality : A rigorous case study

    Författare :Xinyi Chen-Lin; Konstantin Zarembo; Jorge Russo; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; AdS CFT correspondence; holographic principle; supersymmetric localization; Wilson Loops; Theoretical Physics; Teoretisk fysik;

    Sammanfattning : The gauge/string duality, a.k.a. the holographic principle is a profound assertion that emerged from string theory. LÄS MER

  7. 5. Superconformal Theories in Six Dimensions

    Författare :Pär Arvidsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; String theory; Field theories in higher dimensions; Superconformal symmetry;

    Sammanfattning : This thesis consists of an introductory text, which is divided into two parts, and six appended research papers.The first part contains a general discussion on conformal and superconformal symmetry in six dimensions, and treats how the corresponding transformations act on space-time and superspace fields. LÄS MER