Phys. Rev. D 73, 064023 (2006) [9 pages]Self-force on a scalar charge in radial infall from rest using the Hadamard-WKB expansionSee Also: Erratum Received 14 September 2005; published 17 March 2006 We present an analytic method based on the Hadamard-WKB expansion to calculate the self-force for a particle with scalar charge that undergoes radial infall in a Schwarzschild spacetime after being held at rest until a time t=0. Our result is valid in the case of short duration from the start. It is possible to use the Hadamard-WKB expansion in this case because the value of the integral of the retarded Green’s function over the particle’s entire past trajectory can be expressed in terms of two integrals over the time period that the particle has been falling. This analytic result is expected to be useful as a check for numerical prescriptions including those involving mode-sum regularization and for any other analytical approximations to self-force calculations. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.73.064023
DOI:
10.1103/PhysRevD.73.064023
PACS:
04.25.Nx, 04.30.Db, 04.70.Bw
See AlsoErratum: Paul R. Anderson, Ardeshir Eftekharzadeh, and B. L. Hu, Erratum: Self-force on a scalar charge in radial infall from rest using the Hadamard-WKB expansion [Phys. Rev. D 73, 064023 (2006)], Phys. Rev. D 77, 089902 (2008). |
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