Debye mass in de Sitter space

Abstract

We calculate the one-loop contributions to the polarization operator for scalar quantum electrodynamics in different external electromagnetic and gravitational fields. In the case of gravity, de-Sitter space and its different patches were considered. It is shown that the Debye mass appears only in the case of alpha-vacuum in the Expanding Poincare Patch. It can be shown either by direct computations or by using analytical and casual properties of the de-Sitter space. Also, the case of constant electric field is considered and the Debye mass is calculated.

21 pages, 3 figures

References in corpus (7)

• De Sitter Space and Eternity
• Perturbative Quantum Gravity Comes of Age
• Infrared dynamics of massive scalars from the complementary series in de Sitter space
• Secularly growing loop corrections in strong electric fields
• Decay of the de Sitter Vacuum
• Dynamical Casimir effect and surprises with loop corrections to it
• A quantum heating as an alternative of reheating

Cited by in corpus (10)

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• Curved space equilibration vs. flat space thermalization (a short review)
• Quantum fields in the static de Sitter universe
• Characters, quasinormal modes, and Schwinger pairs in $d{S}_2$ with flux
• Free energy and entropy in Rindler and de Sitter space-times
• Photon propagator in de Sitter space in the general covariant gauge
• Debye Screening of Non-Abelian Plasmas in Curved Spacetimes
• Photon propagator for inflation in the general covariant gauge
• Photon quantization in cosmological spaces
• Electromagnetic Debye mass within Gribov-Zwanziger action