Sökning: "Supergravity"
Visar resultat 1 - 5 av 30 avhandlingar innehållade ordet Supergravity.
1. Supergravity, branes and field theory
Sammanfattning : .... LÄS MER
2. Supersymmetric Geometries in Type IIA Supergravity
Sammanfattning : Supergravity theory is any supersymmetric theory with a local supersymmetry parameter. This thesis undertakes the study of type IIA supergravity, a supergravity theory in ten dimensions associated with type IIA string theory. LÄS MER
3. Supersymmetric Geometries in Type IIA Supergravity
Sammanfattning : This thesis is about supersymmetric geometries in type IIA supergravity and their classification using spinorial geometry. Appended is our first paper on the topic. There are four types of Killing spinors to treat, distinguished by their isotropy group. The appended paper treats the cases where the isotropy group is Spin(7) or Spin(7) ⋉ ℝ⁸. LÄS MER
4. The Quest for M-theory
Sammanfattning : In ten dimensions, there exist five consistent string theories and in eleven dimensions there is a unique supergravity theory. When trying to find the fundamental theory of nature this is clearly an "embarrassment of riches". In the mid 90s, however, it was discovered that these theories are all related via a kind of transformation called duality. LÄS MER
5. Scattering Amplitudes in Supersymmetric Quantum Chromodynamics and Gravity
Sammanfattning : Quantum field theory is a theoretical framework for the description of nature in terms of fundamental particles, fields and their interactions. In the quantum regime, elementary scattering processes are observables in many experiments and studied in theoretical physics. LÄS MER