Search for dissertations about: "Massive gravity"
Showing result 11 - 15 of 22 swedish dissertations containing the words Massive gravity.
-
11. Classically Consistent Theories of Interacting Spin-2 Fields
Abstract : This doctoral thesis comprises a study of recently developed nonlinear theories for massive spin-2 fields that go by the names of Massive Gravity and Bimetric Theory. As we demonstrate in a Hamiltonian analysis, the construction of these theories avoids the notorious Boulware-Deser ghost instability that generically plagues nonlinear spin-2 interactions and renders their description inconsistent. READ MORE
-
12. Degenerate Geometries, Supersymmetry and Duality
Abstract : String theory is a theory attempting to unify gravity with the electro-weak and strong interactions so successfully described by Quantum Field Theory. The implications of String Theory is not fully understood since it is still not a complete theory. READ MORE
-
13. The nature of stars with a common origin: clues from metallicity, elemental abundances, and kinematics
Abstract : Most of field stars originate from dissolved star clusters. If the gas cloud is well mixed the stars in the cluster are expected to be chemically homogenous. READ MORE
-
14. Toward Realistic Failure Evaluations for Concrete Buttress Dams
Abstract : Concrete dams, complex structures supporting massive loads, have traditionally been assessed using simplified 2D analytical stability analyses based on the rigid body assumption. Previous studies have shown that 3D behavior, such as the interaction between the monoliths and the valley's geology, can greatly impact the load-bearing capacity of gravity dams but remains largely unexplored in buttress dams. READ MORE
-
15. Neutrino interactions and axion emission impact on core-collapse supernova simulations
Abstract : Core-Collapse Supernovae (CCSNe) are important phenomena in the scope of nucleosynthesis and, as the final stage of massive stars' life, they are key processes in the understanding of stellar evolution. They also are the birthplace of neutron stars and black holes, therefore they play a major role in the modelling and understanding of compact object mergers. READ MORE