Vacuum fluctuations of a massless spin-1/2 field around multiple cosmic strings

ALIEV A., HORTACSU M., Ozdemir N.

CLASSICAL AND QUANTUM GRAVITY, cilt.14, ss.3215-3224, 1997 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 14 Konu: 12
  • Basım Tarihi: 1997
  • Doi Numarası: 10.1088/0264-9381/14/12/008
  • Dergi Adı: CLASSICAL AND QUANTUM GRAVITY
  • Sayfa Sayıları: ss.3215-3224

Özet

We study the interaction of a massless quantized spinor field with the gravitational field of N parallel static cosmic strings by using a perturbative approach. We show that the presence of more than one cosmic string gives rise to an additional contribution to the energy density of vacuum fluctuations, thereby leading to a vacuum force of attraction between two parallel cosmic strings.