Results 61 to 70 of about 250,232 (209)
Primordial Black Hole: Mass and Angular Momentum Evolution
, 2008 The evolution of the primordial low mass black hole (PBH) in hot universe is considered. Increase of mass and decrease of PBH spin due to the accretion of radiation dominated matter are estimated with using of results of numerical simulation of PBH ...
A. G. Doroshkevich +12 more
core +1 more source
Frontiers in Physics, 2020 In a recent note [1], I argued that the holographic origin of ordinary gravitational attraction is the quantum mechanical tendency for operators to grow under time evolution.
Leonard Susskind
doaj +1 more source
5D gravity and the discrepant G measurements
, 2003 It is shown that 5D Kaluza-Klein theory stabilized by an external bulk scalar field may solve the discrepant laboratory G measurements. This is achieved by an effective coupling between gravitation and the geomagnetic field.
A Cornaz +40 more
core +1 more source
Classical and Quantum Gravity, 1997 Gravitational instantons are solutions of the Einstein field equations with Euclidean signature and anti-selfdual curvature. In this letter, the authors try to add a little bit more to our knowledge of instantons by presenting new instanton solutions of the Einstein field equations, which they obtain by means of a reduction of the complex Monge-Ampère ...
Nutku, Y, Sheftel, MB, Malykh, AA
openaire +3 more sources
Gravitational decoherence [PDF]
Classical and Quantum Gravity, 2017 We discuss effects of loss of coherence in low energy quantum systems caused by or related to gravitation, referred to as gravitational decoherence. These effects, resulting from random metric fluctuations, for instance, promise to be accessible by relatively inexpensive table-top experiments, way before the scales where true quantum gravity effects ...
Angelo Bassi +2 more
openaire +5 more sources
Gravitational Waves in Einstein-Cartan Theory: On the Effects of Dark Matter Spin Tensor [PDF]
, 2022 E. Elizalde +4 more
openalex +1 more source
Nuclear Physics B - Proceedings Supplements, 1994 In the last few years there have been a number of significant developments in research towards the detection of gravitational radiation from astronomical objects. The construction of 3 large-scale (3- or 4-km) interferometric detectors has been funded; new high-sensitivity bars are under construction; there is a serious proposal using two ...
openaire +4 more sources
Gravitational helioseismology? [PDF]
Physical Review D, 1996 The magnitudes of the external gravitational perturbations associated with the normal modes of the Sun are evaluated to determine whether these solar oscillations could be observed with the proposed Laser Interferometer Space Antenna (LISA), a network of satellites designed to detect gravitational radiation.
Cutler, Curt, Lindblom, Lee
openaire +3 more sources
Modified model of Newtonian gravitation.
Тонкие химические технологии, 2011 Within the limits of the classical mechanics for planets of the Solar system a new form of gravitational potential is suggested. The following effects are considered: perihelion advance of the planets, deviation of light beams in the field of the Sun ...
E. Kh. Nasretdinova, E. S. Savin
doaj
Slice Energy and Theories of Gravitation
, 2005 We review recent work on the use of the slice energy concept in generalized theories of gravitation. We focus on two special features in these theories, namely, the energy exchange between the matter component and the scalar field generated by the ...
J L Synge +5 more
core +2 more sources