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, sa.12, ss.3215-3224, 1997 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 14 Sayı: 12
  • Basım Tarihi: 1997
  • Doi Numarası: 10.1088/0264-9381/14/12/008
  • Dergi Adı: CLASSICAL AND QUANTUM GRAVITY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3215-3224
  • İstanbul Teknik Üniversitesi Adresli: Evet

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.