Mirror effect induced by the dilaton field on the Hawking radiation

Kengo Maeda, Takashi Okamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A "stringy particle" action is naturally derived from Kaluza-Klein compactification of a test string action coupled to the dilaton field in a conformally invariant manner. According to the standard procedure, we perform the second quantization of the stringy particle. As an interesting application, we consider evaporation of a near-extremal dilatonic black hole by Hawking radiation via the stringy particles. We show that a mirror surface which reflects them is induced by the dilaton field outside the the horizon when the size of the black hole is comparable to the Planck scale. As a result, the energy flux does not propagate across the surface, and hence the evaporation of the dilatonic black hole stops just before the naked singularity at the extremal state appears even though the surface gravity is non-zero in the extremal limit.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages406-411
Number of pages6
Volume861
DOIs
Publication statusPublished - 2006
Externally publishedYes
EventAlbert Einstein Century International Conference - Paris
Duration: 2005 Jul 182005 Jul 22

Other

OtherAlbert Einstein Century International Conference
CityParis
Period05/7/1805/7/22

Fingerprint

mirrors
radiation
evaporation
naked singularities
horizon
strings
gravitation
energy

Keywords

  • Dilaton
  • Hawking radiation
  • String

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Maeda, K., & Okamura, T. (2006). Mirror effect induced by the dilaton field on the Hawking radiation. In AIP Conference Proceedings (Vol. 861, pp. 406-411) https://doi.org/10.1063/1.2399603

Mirror effect induced by the dilaton field on the Hawking radiation. / Maeda, Kengo; Okamura, Takashi.

AIP Conference Proceedings. Vol. 861 2006. p. 406-411.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Maeda, K & Okamura, T 2006, Mirror effect induced by the dilaton field on the Hawking radiation. in AIP Conference Proceedings. vol. 861, pp. 406-411, Albert Einstein Century International Conference, Paris, 05/7/18. https://doi.org/10.1063/1.2399603
Maeda K, Okamura T. Mirror effect induced by the dilaton field on the Hawking radiation. In AIP Conference Proceedings. Vol. 861. 2006. p. 406-411 https://doi.org/10.1063/1.2399603
Maeda, Kengo ; Okamura, Takashi. / Mirror effect induced by the dilaton field on the Hawking radiation. AIP Conference Proceedings. Vol. 861 2006. pp. 406-411
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