Gravitational Paramagnetism, Diamagnetism and Gravitational Superconductivity

Agop, M.; Griga, V.; Ciubotariu, C.; Buzea, Cristina; Stan, Claudiu A.; Jatomir, D

doi:10.1071/ph961063

Cited by 16 publications

(23 citation statements)

References 3 publications

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“…In fact, the gravito-magnetic field is expelled with effectively the same London penetration depth as the magnetic field. The possibility of a gravito-magnetic Meissner effect is in agreement with [22], [23], [24].…”

Section: London Equations Meissner Effects and Penetration Depthssupporting

confidence: 86%

Superconductor Meissner effects for gravito-electromagnetic fields in harmonic coordinates due to non-relativistic gravitational sources

Inan¹

2022

Preprint

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It is well known that a covariant Lagrangian for relativistic charged particles can lead to a vanishing Hamiltonian. Alternatively, it is shown that using a "space+time" Lagrangian leads to a new canonical momentum and minimal coupling rule that describes the coupling of both electromagnetic and gravitational fields to a relativistic charged particle. Discrepancies between Hamiltonians obtained by various authors are resolved. The canonical momentum leads to a new form of the London equations and London gauge. Using the linearized Einstein field equation in harmonic coordinates, and a non-relativistic ideal fluid, leads to gravito-electromagnetic field equations. These are used to obtain new penetration depths for both the magnetic and gravito-magnetic fields. A key result is that the gravito-magnetic field is expelled from a superconductor only when a magnetic field is also present. The flux quantum in the body of a superconductor, and the quantized supercurrent in a superconducting ring are derived. Lastly, the case of a superconducting ring in the presence of a charged rotating mass cylinder is used as an example of applying the formalism developed.

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Section: London Equations Meissner Effects and Penetration Depthssupporting

confidence: 86%

Superconductor Meissner effects for gravito-electromagnetic fields in harmonic coordinates due to non-relativistic gravitational sources

Inan¹

2022

Preprint

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“…The connection between gravitational field and superconductivity has been object of study of a lot of works for many years [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] due to be a very interesting and novel field of research. However, in the specific line of research concerning to the strange effect here described, we can mainly emphasize works that consider possible explanations by using the general relativity [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Theoretical Study of Anomalous Forces Externally Induced by Superconductors

Porcelli¹,

Filho²

2017

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In this work we present a theoretical explanation for the possible anomalous forces induced by superconducting disks and toroids, based on the hypothesis of a preexisting state of generalized quantum entanglement that can produce momentum variation exchanged between Cooper pairs and outer particles. Considering the immense amount of particles involved in the phenomenon as coherent Cooper pairs, and indications of previous studies, we use classical quantities as macroscopic observables in our calculations. We here analyzed the behavior of such superconductors and compared the experimental results early obtained in the literature with our theoretical proposal. We found that the theoretical calculations agreed with very good accuracy for two different experiments and devices. The present work really highlights the possibility of superconducting materials to be applied to induce outer forces in the environment and in external objects, as explained by our theoretical model.

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“…Formally this equation coincides with the Schrödinger equation for a linear oscillator which oscillates with frequency ω g = 2B g (Agop et al 1996) about the equilibrium position y = y 0 . Therefore the constant E − p 2 z /2m, which plays the role of the oscillator energy, may take the values (n + 1 2 )2mDω g where n is an integer.…”

Section: Universe Quantisationmentioning

confidence: 56%

“…In these conditions, having in view the results given by Agop et al (1996), the Hamiltonian becomesĤ…”

Section: Universe Quantisationmentioning

confidence: 99%

Some Physical Implications of the Gravitoelectromagnetic Field in Fractal Space - Time Theory

Petreus¹,

Buzea²,

Marin³

et al. 1998

Aust. J. Phys.

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Gravitational Paramagnetism, Diamagnetism and Gravitational Superconductivity

Cited by 16 publications

References 3 publications

Superconductor Meissner effects for gravito-electromagnetic fields in harmonic coordinates due to non-relativistic gravitational sources

Superconductor Meissner effects for gravito-electromagnetic fields in harmonic coordinates due to non-relativistic gravitational sources

Theoretical Study of Anomalous Forces Externally Induced by Superconductors

Some Physical Implications of the Gravitoelectromagnetic Field in Fractal Space - Time Theory

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