Plasma, gravitation, and force-free geometries

Ciubotariu, C.; Ciubotariu, Carmen‐Iuliana; Ciubotariu, Ciprian

doi:10.1007/bf02107953

Cited by 5 publications

(3 citation statements)

References 16 publications

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“…Recent results (Peng 1983(Peng , 1990Ciubotariu 1991;Ciubotariu et al 1993) have shown that Einstein's equations in the weak field, low speed (v« c) approximation reduce to Maxwell-type equations: where Bg is the gravitomagnetic field, Eg the gravitoelectric field, Ag the vector potential, V g the scalar potential, jm = Pm V the mass current density, and Pm = nm is the proper mass density with n the number density of particles having rest mass m. In the same approximation, the geodesic equation reduces to a Lorentz-type equation (Peng 1983;Ciubotariu 1991):…”

Section: Introductionmentioning

confidence: 99%

Gravitational Paramagnetism, Diamagnetism and Gravitational Superconductivity

Agop¹,

Griga²,

Ciubotariu³

et al. 1996

Aust. J. Phys.

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In the weak field approximation to the gravitational field equations, we study gravitational paramagnetism and diamagnetism, the gravitational Meissner effect and gravitational superconductivity.The spontaneous symmetry breaking corresponds to crossing from closed geodesics to open ones, and to the existence of a critical temperature in the frame of a gauge model at finite temperature. In this later case one can obtain expressions giving the dependence of several superconducting parameters on temperature.

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Section: Introductionmentioning

confidence: 99%

Gravitational Paramagnetism, Diamagnetism and Gravitational Superconductivity

Agop¹,

Griga²,

Ciubotariu³

et al. 1996

Aust. J. Phys.

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“…we find that the amplitude h, at r = 1 m from the generator, is about h ≈ 10 −23 (22) which is comparable, for instance, to the amplitude of the gravitational radiation impinging on the Earth from the astrophysical system containing the pulsar PSR 1913 + 16. However, our arguments assume that the components of tensors are the same in the two reference frames, in fact the T T (transverse-traceless) coordinate frame which is specially adapted to the gravitational waves and, respectively, the detector's or generator's proper reference frame.…”

Section: Simulating the Gravitational Wave-produced Accelerationsmentioning

confidence: 71%

“…20, and for recent applications Refs. [21][22][23][24]. The governing equations for a gravitoelectric field E g and a gravitomagnetic field B g are analogous to Maxwell's equations:…”

Section: A Cosmical Application and A New Gravitational Effectmentioning

confidence: 99%

A Proposal of New Gravitational Experiments

Argyris

Ciubotariu

1997

Mod. Phys. Lett. A

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Since "evidently the construction of a laboratory generator of gravitational radiation is an unattractive enterprise in the absence of new engineering or a new idea or both" [C. W. Misner, K. S. Thorne and J. A. Wheeler, Gravitation (Freeman, 1973), p. 979], we propose in this letter some new experiments on the physics of gravitation. These experiments refer to: simulation of accelerations produced by a gravity wave, a source of high-frequency gravitational waves, a direct current gravitational machine, materials with high gravitomagnetic permeability, and finally the possibility of an attenuation of the gravitational attraction. The new ideas involve essentially first the concept of a detector or a source of gravitational radiation in the form of a body in which the motions of particles are precisely the same as those induced by a real gravitational wave in that body, and second, to design a detector having two principal components placed at a distance of λ/2 along the direction of propagation of a gravity wave. We define a new type of gravitomagnetic field generated directly by the time-dependent tidal accelerations of the gravitational wave, and we also define a new concept: the gravitational superconductor. * This essay received "honorable mention" from the Gravity Research Foundation, 1997 -Ed. †

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On El Naschie's complex time and gravitation

Argyris

Ciubotariu

1997

Chaos, Solitons & Fractals

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Plasma, gravitation, and force-free geometries

Cited by 5 publications

References 16 publications

Gravitational Paramagnetism, Diamagnetism and Gravitational Superconductivity

Gravitational Paramagnetism, Diamagnetism and Gravitational Superconductivity

A Proposal of New Gravitational Experiments

On El Naschie's complex time and gravitation

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