Abstract
We consider the semiclassical quantization of the Klein—Gordon field on a Robertson—Walker background with a flat-out region. We show that the requirement that the energy density of created particles be finite selects a preferred equivalence class of particle definitions. We present a representative element of the equivalence class so determined. We briefly discuss the generalization to Bianchi I spacetimes, and the case of an external Maxwell field.
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References
Fulling, S.A., GRG 10, 807 (1979).
Parker, L., Phys. Rev. 183, 1057 (1069).
Ashtekar, A. and Magnon, A., Proc. Roy. Soc. A346, 375 (1975).
Dray, T., Renn, J., and Salisbury, D.C., Proceedings of the 8th Course of the International School of Cosmology and Gravitation in Erice, 1982 (to appear).
Renn, J., Diplomarbeit (in German), Freie Universität Berlin, 1982 (unpublished).
Shale, D., Proc. Cambridge Phil. Soc. 57, 790 (1961). Seiler, R., Comm. Math. Phys. 25, 127 (1972). Seiler, R., Lecture Notes in Physics 73, 165 (1977). Schroer, B., Seiler, R., and Swieca, J.A., Phys. Rev. D2, 2927 (1970).
Chakraborty, B., J. Math. Phys. 14, 188 (1973).
Labonté, G., Ph.D. thesis, University of Alberta, 1973 (unpublished); Lundberg, L.-E., Comm. Math. Phys. 31, 295 (1973). Labonté, G., Can. J. Phys. 53, 1533 (1975). (for fermions).
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Nato Postdoctoral Fellow.
Supported by DFG/Az Se 287-6.
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Dray, T., Renn, J. & Salisbury, D. Particle creation with finite energy density. Lett Math Phys 7, 145–153 (1983). https://doi.org/10.1007/BF00419933
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DOI: https://doi.org/10.1007/BF00419933