Sökning: "braneworld"

Hittade 2 avhandlingar innehållade ordet braneworld.

1. 1. New horizons in string theory : bubble babble in search of darkness

   Författare :Suvendu Giri; Ulf Danielsson; Bert Vercnocke; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; String theory; black holes; dark energy; de Sitter; cosmological constant; M-theory; braneworld; anti de Sitter; Theoretical Physics; Teoretisk fysik;

   Sammanfattning : It was discovered nearly two decades ago that we live in an accelerating universe that is dominated by dark energy. Understanding the origin of such an energy has turned out to be a very difficult open question in physics, and calls on the need for a fundamental theory like string theory. LÄS MER

3. 2. Information geometries in black hole physics

   Författare :Narit Pidokrajt; Ingemar Bengtsson; Jorma Louko; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; black holes; thermodynamics; instability; hessian; entropy; ruppeiner geometry; weinhold geometry; information geometry; Theory of relativity; gravitation; Relativitetsteori; gravitation; teoretisk fysik; Theoretical Physics;

   Sammanfattning : In this thesis we aim to develop new perspectives on the statistical mechanics of black holes using an information geometric approach (Ruppeiner and Weinhold geometry). The Ruppeiner metric is defined as a Hessian matrix on a Gibbs surface, and provides a geometric description of thermodynamic systems in equilibrium. LÄS MER