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We address the gravitation and inertia in the framework of general gauge principle, which accounts for gravitation gauge group generated by hidden local internal symmetry implemented on the flat space. We connect this group to nonlinear realization of the Lie group of distortion of local internal properties of six-dimensional flat space, which is assumed as a toy model underlying four-dimensional Minkowski space. The agreement between proposed gravitational theory and available observational verifications is satisfactory. We construct relativistic field theory of inertia and derive the relativistic law of inertia. This theory furnishes justification for introduction of the Principle of Equivalence. We address the rearrangement of vacuum state in gravity resulting from these ideas.
Metastable states decay at zero temperature through quantum tunneling at an exponentially small rate, which depends on the Coleman-de Luccia instanton, also known as bounce. In some theories, the bounce may not exist or its on-shell action may be ill
False vacuum decay in field theory may be formulated as a boundary value problem in Euclidean space. In a previous work, we studied its solution in single scalar field theories with quadratic gravity and used it to find obstructions to vacuum decay.
I exhibit the conflicting roles of Noethers two great theorems in defining conserved quantities, especially Energy in General Relativity and its extensions: It is the breaking of coordinate invariance through boundary conditions that removes the barr
A number of recent observations have suggested that the Einsteins theory of general relativity may not be the ultimate theory of gravity. The f(R) gravity model with R being the scalar curvature turns out to be one of the best bet to surpass the gene
We analyse the vacuum static spherically symmetric space-time for a specific class of non-conservative theories of gravity based on the Rastalls theory. We obtain a new vacuum solution which has the same structure as the Schwarzschild-de Sitter solut