Production of scalar particles in expanding spacetime

Details Production of scalar particles in expanding spacetime Production of scalar particles in expanding spacetime

2005-05-26

arxiv.org/abs/gr-qc/0505131v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, 3 figures. (Corrected topographic errors.)

Scientific paper

In this paper, we investigate cosmological particle production using quantum field theory (QFT). We will consider how production of scalar particles can occur in an expanding universe. By introducing a time-dependent energy parameter representing the time evolution of the universe, the initial vacuum state will be excited. Consequently, creation of particles is present. Here, our focus is mainly creation of minimally coupled scalar particles in Minkowski spacetime.

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