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Light deflection by squashed Kaluza-Klein black holes in a plasma medium

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 نشر من قبل Ken Matsuno
 تاريخ النشر 2020
  مجال البحث فيزياء
والبحث باللغة English
 تأليف Ken Matsuno




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We study motions of photons in an unmagnetized cold homogeneous plasma medium in the five-dimensional charged static squashed Kaluza-Klein black hole spacetime. In this case, a photon behaves as a massive particle in a four-dimensional spherically symmetric spacetime. We consider the light deflection by the squashed Kaluza-Klein black hole surrounded by the plasma in a weak-field limit. We derive corrections of the deflection angle to general relativity, which are related to the size of the extra dimension, the charge of the black hole and the ratio between the plasma and the photon frequencies.



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