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Phys. Rev. Lett. 88, 211101 (2002) [4 pages]

The Fields of Uniformly Accelerated Charges in de Sitter Spacetime

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Jiří Bičák* and Pavel Krtouš
Institute of Theoretical Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic

Received 15 November 2001; published 8 May 2002

The scalar and electromagnetic fields of charges uniformly accelerated in de Sitter spacetime are constructed. They represent the generalization of the Born solutions describing fields of two particles with hyperbolic motion in flat spacetime. In the limit Λ→0, the Born solutions are retrieved. Since in the de Sitter universe the infinities I± are spacelike, the radiative properties of the fields depend on the way in which a given point of I± is approached. The fields must involve both retarded and advanced effects: Purely retarded fields do not satisfy the constraints at the past infinity I-.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.88.211101
DOI:
10.1103/PhysRevLett.88.211101
PACS:
04.20.-q, 03.50.-z, 04.40.-b, 98.80.Hw

*Electronic address: bicak@mbox.troja.mff.cuni.cz

Electronic address: Pavel.Krtous@mff.cuni.cz