Abstract:
We study the Abraham model for N charges interacting with the Maxwell field. On the scale of the charge diameter, R ϕ, the charges are a distance ɛ-1 R ϕ apart and have a velocity with ɛ a small dimensionless parameter. We follow the motion of the charges over times of the order ɛ-3/2 R ϕ/c and prove that on this time scale their motion is well approximated by the Darwin Lagrangian. The mass is renormalized. The interaction is dominated by the instantaneous Coulomb forces, which are of the order ɛ2. The magnetic fields and first order retardation generate the Darwin correction of the order ɛ3. Radiation damping would be of the order ɛ7/2.
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Received: 13 January 2000 / Accepted: 4 February 2000
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Kunze, M., Spohn, H. Slow Motion of Charges¶Interacting Through the Maxwell Field. Comm Math Phys 212, 437–467 (2000). https://doi.org/10.1007/s002200000219
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DOI: https://doi.org/10.1007/s002200000219