The Lagrangian equations of motion for massive spinning test particles (tops) moving on a gravitational background using general relativity are presented. The paths followed by tops are nongeodesic. An exact solution for the motion of tops on a Schwarzschild background which allows for superluminal propagation of tops is studied. It is shown that the solution becomes relevant for particles with...

The confrontation between Einstein’s gravitation theory and experimental results, notably binary pulsar data, is summarized and its significance discussed. Experiment and theory agree at the 10 level. All the basic structures of Einstein’s theory (coupling of gravity to matter; propagation and self-interaction of the gravitational field, including in strong-field conditions) have been verified....

We show that a gravitating mass M in thermal equilibrium behaves statistically like a system of some number N of harmonic oscillators whose zero-point energy ǫ 2 depends on N universally in such a way that Nǫ2 ∼ hc G , where G is the Newton constant, c is the velocity of light in vacuum, and h is the Planck constant. The large number N is also the number of weakly interacting gravitational atom...

a Center of Gravitation and Fundamental Metrology, VNIIMS, Ozyornaya St. 46, Moscow 117361, Russia; Institute of Gravitation and Cosmology, PFUR, Miklukho-Maklaya St. 6, Moscow 117198, Russia b Department of Theoretical Physics, Ulyanovsk State University, Leo Tolstoy St. 42, 432000 Ulyanovsk, Russia; Department of General Physics, Ulyanovsk State Pedagogical University, Lenin’s 100 years Sq., ...

in studying of the in situ gravitational concentration process part feature for placer, the technological ability to transform the in situ massif placer structure is evident. the two main processes involved in altering the massif in situ have been examined and outlined in detail. the in situ disintegration of massif material results in a new massif gravitational stratification structure. regula...

The issue of whether some manifestations of gravitation in the quantum domain, are indicative or not of a non-geometrical aspect in gravitation is discussed. We examine some examples that have been considered in this context, providing a critical analysis of previous interpretations. The analysis of these examples is illustrative about certain details in the interpretation of quantum mechanics....

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...

We exhibit a purely quantum mechanical carrier of the imprints of gravitation by identifying for a relativistic charge a property which (i) is independent of its mass and (ii) expresses the Poincare invariance of spacetime in the absence of gravitation. This carrier is a Klein-Gordon-equation-determined vector eld given by the \Planckian power" and the \r.m.s. thermal uctuation" spectra. Does t...

Unifying physics by describing a variety of interactions – or even all interactions – within a common framework has long been an alluring goal for physicists. One of the most ambitious attempts at unification was made in the 1910s by Gustav Mie. Mie aimed to derive electromagnetism, gravitation, and aspects of the emerging quantum theory from a single variational principle and a well-chosen Lag...