Proca Effect in Kerr–Newman Metric

Bei, Xiaomin; Shi, Changsheng; Liu, Zhongzhu

doi:10.1023/b:ijtp.0000048638.90043.97

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…If the plasma density tends to zero, the photon mass, µ → 0 and the Kerr-Newman spacetime is recovered [13].…”

Section: Kerr-newman Bh With Proca Photon Massmentioning

confidence: 99%

“…Photons can acquire an additional virtual mass term in the presence of a cosmological charge asymmetry [2]. The photon mass is supposed to be acquired through the interaction of the photons with a structured plasma [8] surrounding the compact object and the presence of massive photons is expected to modify the spacetime curvature around the BH [12,13]. For the sake of simplicity and to give better evidence to the rôle of the photon mass, we do not express directly in the line element the small gravitational perturbation caused by the presence of the plasma.…”

Section: Introductionmentioning

confidence: 99%

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Photon Orbital Angular Momentum and Proca effects in rotating and charged spacetimes

Tamburini¹,

Thidé²

2011

Preprint

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We analyze the effect of Proca mass and orbital angular momentum of photons imposed by a structured plasma in Kerr-Newman and Reissner-Nordström-de Sitter spacetimes. The presence of characteristic lengths in a turbulent plasma converts the virtual Proca photon mass on orbital angular momentum, with the result of decreasing the virtual photon mass. The combination of this plasma effect and that of the gravitational field leads to a new astrophysical phenomenon that imprints a specific distribution of orbital angular momentum into different frequencies of the light emitted from the neighborhood of such a black hole. The determination of the orbital angular momentum spectrum of the radiation in different frequency bands leads to a complete characterization of the electrostatic and gravitational field of the black hole and of the plasma turbulence, with fundamental astrophysical and cosmological implications.

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“…If the plasma density tends to zero, the photon mass, µ → 0 and the Kerr-Newman spacetime is recovered [13].…”

Section: Kerr-newman Bh With Proca Photon Massmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photon Orbital Angular Momentum and Proca effects in rotating and charged spacetimes

Tamburini¹,

Thidé²

2011

Preprint

View full text Add to dashboard Cite

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General relativistic electromagnetic and massive vector field effects with gamma-ray burst production

2017

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To explain the extremely high energy release, > 10 53 erg, suggested by the observations of some Gamma-Ray Bursts (GRBs), we propose a new energy extraction mechanism from the rotational energy of a Kerr-Newman black hole (BH) by a massive photon field. Numerical studies show that this mechanism is stable with respect to the black hole rotation parameter, a, with a clear dependence on the BH mass, M, and charge, Q, and can extract energies up to 10 54 erg. The controversial "energy crisis" problem of GRBs that does not show evidence for collimated emission may benefit from this energy extraction mechanism. With these results we set a lower bound on the coupling between electromagnetic and gravitational fields.The exact Gamma-Ray Burst (GRB) energy production mechanism is still a matter of debate. One possible explanation is the energy release during the formation of a rotating black hole (BH) surrounded by the matter of a rapidly collapsing massive star and, to account for the high energy observed, one has to find very efficient energy extraction mechanisms from the BH [1][2][3]. Other possible mechanisms can be highenergy phenomena of energy pulse from electron-positron pair production and the photon plasma fluid created by vacuum polarization in the dyadosphere [4,5], a region around a charged BH that extends from the exterior event horizon r + to a given radius r ds that depends on the mass and charge of the BH [6-9].Vacuum polarization effects require strong magnetic fields that mimic the effects of a charged and rotating BH described by the Kerr-Newman solution [10]. However, because typical astrophysical systems show a strong tendency to eliminate any net electric charge, a charged BH is not a realistic physical solution and cannot be generated by the gravitational collapse of a core larger than the neutron star critical mass endowed with an electromagnetic field. A reasonable physical solution is to consider energy extraction mechanisms where a BH that "acquires" a temporary fictitious net charge because of vacuum polarization effects and/or generates an electrostatic field that extends towards the neighborhoods of the event horizon through a selective capture of charged particles. This temporary fictitious charge is expected to dissipate on time scales τ < 10 7 s, long enough to set up the GRB energy extraction mechanisms occurring on much shorter time scales during the collapse of the star and thus justify the use of Kerr-Newman based spacetimes [4,5].As described in Ref. 11, photons can acquire mass due to gravitational and electromagnetic field coupling. Exploiting this possibility, we here describe a new mechanism of energy extraction from black-hole rotational energy made possible by vacuum polarization effects occurring in the dyadosphere around a Kerr-Newman BH.The main motivation for this work arises from observations of GRBs that do not show evidence of collimated emission [12][13][14][15][16]. As shown, e.g., by Amati and Della Valle [17], GRBs have a distribution of released energy, in terms of...

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The great physicist

Pitaevskiĭ¹

2008

Her. Russ. Acad. Sci.

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Proca Effect in Kerr–Newman Metric

Cited by 4 publications

References 11 publications

Photon Orbital Angular Momentum and Proca effects in rotating and charged spacetimes

Photon Orbital Angular Momentum and Proca effects in rotating and charged spacetimes

General relativistic electromagnetic and massive vector field effects with gamma-ray burst production

The great physicist

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