Lower limit to the scale of an effective quantum theory of gravitation.

Lower Limit to The Scale of an Effective Theory of Gravitation

Probing Lorentz Symmetry with Gravitationally Coupled Matter

The Standard Model of particle physics together with Einstein’s General Relativity provide a remarkably successful description of known phenomena. General Relativity describes gravitation at the classical level, while all other interactions are described down to the quantum level by the Standard Model. However, a single quantum-consistent theory at the Planck scale remains elusive. Ideally, exp...

Bulk Viscous Bianchi Type VI0 Cosmological Model in the Self-creation Theory of Gravitation and in the General Theory of Relativity

In the second self-creation theory of gravitation and in the general theory of relativity, Bianchi type VI0 cosmological model in the presence of viscous fluid is studied. An exact solution of the field equations is given by considering the cosmological model yields a constant decelerations parameter q=constant and the coefficients of the metric are taken as A(t)=[c1t+c<su...

Strange quark matter attached to string cloud in general scalar tensor theory of gravitation

Bianchi type-VI0 space time with strange quark matter attached to string cloud in Nordtvedt [1] general scalar tensor theory of gravitation with the help of a special case proposed by Schwinger [2] is obtained. The field equations have been solved by using the anisotropy feature of the universe in the Bianchi type-VI0 space time. Some important features of the model, thus obtained, have been di...

The Theory of Scale Relativity∗

Basing our discussion on the relative character of all scales in nature and on the explicit dependence of physical laws on scale in quantum physics, we apply the principle of relativity to scale transformations. This principle, in combination with its breaking above the Einstein-de Broglie wavelength and time, leads to the demonstration of the existence of a universal, absolute and impassable s...