Spontaneous loss of charge of the Reissner-Nordström black hole

Gabriel, Cl.

doi:10.1103/physrevd.63.024010

Cited by 14 publications

(12 citation statements)

References 8 publications

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“…Most of these pollen grains were from the Asteraceae, Euphorbiaceae, Fabaceae, Malvaceae, and Solanaceae. Similar results were obtained from research in Argentina (Cuadrado, 1999;Cuadrado and Garralla, 2000), Brazil (Cuadrado, 1996;Gabriel, 2000), Mexico (Jones et al, 1992;1993), and Paraguay (Cuadrado, 1996;Gabriel, 2000). However, there is little information on pollen retention in the insect gut.…”

Section: Introductionsupporting

confidence: 77%

Cotton Pollen Retention in Boll Weevils: A Laboratory Experiment

Jones

Greenberg

2009

Palynology

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Cotton pollen is thought to exist in the gut of boll weevils for at least 24 hours. Because finding whole or broken cotton pollen grains are valuable clues in determining when boll weevils were living in cotton, the retention of cotton pollen in the gut of the weevil was examined. Boll weevils were fed cotton buds, cotton flowers, and water for five days, then they were placed into cleaned cages without any food. However they were allowed to drink water freely. Weevils were examined at 0, 24, 48, 72, 96, and 120 hours after the buds and flowers were removed. One hundred weevils were dissected at each time interval, and each gut was placed onto a glass slide. Light microscopy was used to determine the presence or absence of cotton pollen. More weevils (63%) at 0 hours contained pollen than weevils at any other interval. Whole pollen grains were not found in weevils after 24 hours. The 120 hour interval contained a single weevil with pollen. In the laboratory test, whole cotton pollen grains indicated that feeding on cotton occurred within 24 hours. When only halves and fragments of pollen were found, cotton feeding occurred 48-120 hours earlier. Additionally, when six or more cotton pollen grains were found in a weevil, it had fed on cotton within 24 hours. This information narrows the boll weevil dispersal times and distances from cotton fields and overwintering areas.

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Section: Introductionsupporting

confidence: 77%

Cotton Pollen Retention in Boll Weevils: A Laboratory Experiment

Jones

Greenberg

2009

Palynology

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“…For more recent related discussions about the quantum effect of fields in the charged black hole backgrounds, see Refs. [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Spontaneous pair production in Reissner-Nordström black holes

et al. 2012

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We investigate the spontaneous pair production, including the Schwinger mechanism and the Hawking thermal radiation, of charged scalar particles from the near horizon region of a (near) extremal Reissner-Nordström black hole. The paradigm is equivalent to the dynamics of the charged scalar field in a specific AdS2 × S 2 spacetime with a constant electric field. Two possible boundary conditions are adopted to explicitly compute the corresponding production rate and absorption cross section. It is shown that the Schwinger production rate can be eventually suppressed by the increasing attractive gravitational force as the geometry changes from the extremal to the near extremal black hole. Consequently, the Schwinger mechanism and the Hawking radiation are generically indistinguishable for the near extremal black holes. The holographic description dual to the pair production is also briefly discussed.

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“…The discharge of charged BHs by Hawking radiation or pair creation due to the electromagnetic background field has already been anticipated by Hawking himself in his seminal work [1]. This effect has been studied further for example by [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. These works typically focus on the discharge in the exterior region and, as far as quantitative results are concerned, on large field masses and charges.…”

Section: Introductionmentioning

confidence: 99%

The renormalized charged scalar current in the Reissner-Nordström-de Sitter spacetime

Klein,

Zahn

2021

Preprint

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Spontaneous loss of charge of the Reissner-Nordström black hole

Cited by 14 publications

References 8 publications

Cotton Pollen Retention in Boll Weevils: A Laboratory Experiment

Cotton Pollen Retention in Boll Weevils: A Laboratory Experiment

Spontaneous pair production in Reissner-Nordström black holes

The renormalized charged scalar current in the Reissner-Nordström-de Sitter spacetime

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