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Paper   IPM / Astronomy / 16188
School of Astronomy
  Title:   Revisiting the Israel junction conditions in Einstein–Cartan gravity
  Author(s): 
1.  S. Khakshournia
2.  R. Mansouri
  Status:   Published
  Journal: Modern Physics D
  No.:  7
  Vol.:  29
  Year:  2020
  Supported by:            ipm IPM
  Abstract:
The Israel junction conditions of a thin shell in the context of Einstein–Cartan gravity are revisited. It is shown that with a choice of the torsion discontinuity taken to be orthogonal to the hypersurface and consistent with the antisymmetric properties of torsion tensor and contorsion tensor, the generalized asymmetric surface energy–momentum tensor turns out to be tangent to the hypersurface while the resulting generalized Israel junction conditions are modified. The main differences to previous works are mentioned.

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