Production of scalar particles in electric field on de Sitter expanding Universe

Abstract

The scalar particle production from vacuum in the presence of electric field, on the de Sitter spacetime is studied. We use perturbation methods to define the transition amplitude. We obtain that the momentum is not conserved in this process. The probability of pair production is computed by squaring the transition amplitude. Our graphical representations shows that, the probability of scalar particle production was important only in early stage of the universe, when the Hubble's constant was very large in comparison with the mass of the particle. Also we propose here a criteria of particle-antiparticle separation.

13 pages, 6 figures

References in corpus (2)

• The quantum theory of scalar fields on the de Sitter expanding universe
• New Spherical Scalar Modes on the de Sitter Expanding Universe

Cited by in corpus (4)

• Interaction between Maxwell field and charged scalar field in de Sitter universe
• A perturbative production of massive Z bosons and fermion-antifermion pairs from the vacuum in the de Sitter Universe
• Induced energy-momentum tensor of Dirac field in 2D de Sitter QED
• Perturbative approach to the problem of particle production in electric field on de Sitter universe