Magnetic field and curvature effects on pair production. I. Scalars and spinors

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Karabali D., Kürkcüoğlu S., Nair V. P.

PHYSICAL REVIEW D, vol.100, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 100
  • Publication Date: 2019
  • Doi Number: 10.1103/physrevd.100.065005
  • Journal Name: PHYSICAL REVIEW D
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Middle East Technical University Affiliated: Yes

Abstract

The pair production rates for spin-0 and spin-1/2 particles are calculated on spaces of the form M x R-1,R-1, with M corresponding to R-2 (flat); T-2 (flat, compactified); S-2 (positive curvature); and H-2 (negative curvature), with and without a background magnetic field on M. The motivation is to elucidate the effects of the curvature and background magnetic field. Contrasting effects for positive and negative curvature on the two cases of spin are obtained. For positive curvature, we find enhancement for spin-0 and suppression for spin-1/2, with the opposite effect for negative curvature.