Quantum charged fields in Rindler space

Details Quantum charged fields in Rindler space Quantum charged fields in Rindler space

1999-12-03

arxiv.org/abs/gr-qc/9912016v2

Annals Phys. 284 (2000) 263-335

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

1 Tex file + 5 eps figures

Scientific paper

10.1006/aphy.2000.6071

We study, using Rindler coordinates, the quantization of a charged scalar field interacting with a constant, external, electric field. First we establish the expression of the Schwinger vacuum decay rate, using the operator formalism. Then we rederive it in the framework of the Feynman path integral method. Our analysis reinforces the conjecture which identifies the zero winding sector of the Minkowski propagator with the Rindler propagator. Moreover we compute the expression of the Unruh's modes that allow to make connection between Minkowskian and Rindlerian quantization scheme by purely algebraic relations. We use these modes to study the physics of a charged two level detector moving in an electric field whose transitions are due to the exchange of charged quanta. In the limit where the Schwinger pair production mechanism of the exchanged quanta becomes negligible we recover the Boltzman equilibrium ratio for the population of the levels of the detector. Finally we explicitly show how the detector can be taken as the large mass and charge limit of an interacting fields system.

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