Sökning: "Sayed Fawad Hassan"

Hittade 2 avhandlingar innehållade orden Sayed Fawad Hassan.

  1. 1. Geometry of interactions in ghost-free bimetric theory

    Författare :Mikica Kocic; Sayed Fawad Hassan; Tomi Koivisto; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Modified gravity; Interacting spin-2 fields; Bimetric theory; Massive gravity; teoretisk fysik; Theoretical Physics;

    Sammanfattning : The ghost-free bimetric theory is an extension to general relativity where two metric tensors are used instead of one. A priori, the two metrics may not have compatible notions of space and time, which makes the formulation of the initial-value problem problematic. LÄS MER

  3. 2. Unravelling Consistent Spin-2 Interactions

    Författare :Mikael von Strauss; Sayed Fawad Hassan; Mikhail Volkov; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Modified Gravity; Massive Spin-2; Spin-2 Interactions; teoretisk fysik; Theoretical Physics;

    Sammanfattning : Recently, a unique formulation of a classically consistent theory of massive spin-2 fields has emerged. In this thesis I address a few of the primary questions that arise once such a theory is available. LÄS MER